Works (97)

Updated: June 24th, 2024 08:25

2024 journal article

A Data-Based Hybrid Chemistry Acceleration Framework for the Low-Temperature Oxidation of Complex Fuels

ENERGIES, 17(3).

By: S. Alqahtani n, K. Gitushi n & T. Echekki n

author keywords: chemistry reduction; data-based hybrid chemistry model; artificial neural network; principal component analysis
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 7, 2024

2024 journal article

Combustion chemistry acceleration with DeepONets

FUEL, 365.

By: A. Kumar n & T. Echekki n

author keywords: Operator learning; Machine learning; Stiff chemistry integration; Surrogate modeling; Latent space kinetics identification
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 15, 2024

2024 journal article

Comparisons of Different Representative Species Selection Schemes for Reduced-Order Modeling and Chemistry Acceleration of Complex Hydrocarbon Fuels

Energies.

By: K. Gitushi n & T. Echekki n

Source: ORCID
Added: June 1, 2024

2024 article

On the application of principal component transport for compression ignition of lean fuel/air mixtures under engine relevant conditions

Jung, K. S., Kumar, A., Echekki, T., & Chen, J. H. (2024, February). COMBUSTION AND FLAME, Vol. 260.

By: K. Jung*, A. Kumar n, T. Echekki n & J. Chen*

author keywords: Principal component analysis; Homogeneous charge compression ignition; Direct numerical simulation; Artificial neural network; Reduced order model
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 29, 2023

2023 journal article

Acceleration of turbulent combustion DNS via principal component transport

COMBUSTION AND FLAME, 255.

By: A. Kumar n, M. Rieth*, O. Owoyele*, J. Chen* & T. Echekki n

author keywords: Turbulent combustion simulation; Machine learning; Direct numerical simulation (DNS); Reduced order modeling; Principal component transport
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: June 16, 2023

2023 article

Deep Learning of Joint Scalar PDFs in Turbulent Flames from Sparse Multiscalar Data

Ranade, R., Gitushi, K. M., & Echekki, T. (2023, November 25). COMBUSTION SCIENCE AND TECHNOLOGY, Vol. 11.

By: R. Ranade*, K. Gitushi n & T. Echekki n

author keywords: DeepONet; kernel density estimation; principal component analysis; joint scalar PDFs; turbulent combustion
Sources: Web Of Science, NC State University Libraries
Added: December 18, 2023

2023 journal article

Derived scalar statistics from multiscalar measurements via surrogate composition spaces

COMBUSTION AND FLAME, 250.

By: A. Taassob n & T. Echekki n

author keywords: Surrogate composition space; Principal component analysis
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 8, 2023

2023 article

ML for reacting flows _ editorial

Vervisch, L., & Echekki, T. (2023, December). APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE, Vol. 16.

By: L. Vervisch* & T. Echekki n

Sources: Web Of Science, NC State University Libraries
Added: January 16, 2024

2023 article

Physics-Informed Neural Networks for Turbulent Combustion: Toward Extracting More Statistics and Closure from Point Multiscalar Measurements

Taassob, A., Ranade, R., & Echekki, T. (2023, October 31). ENERGY & FUELS, Vol. 10.

By: A. Taassob n, R. Ranade* & T. Echekki n

Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 1, 2023

2022 journal article

CFD multiphase combustion modelling of oleic by-products pellets in a counter-current fixed bed combustor

COMPTES RENDUS CHIMIE, 25, 113–127.

By: M. Mami*, M. Lajili* & T. Echekki n

author keywords: CFD; Porous medium; Fixed bed reactor; Olive pits pellets; Multiphase combustion
Sources: Web Of Science, NC State University Libraries
Added: October 24, 2022

2022 journal article

Investigation of deep learning methods for efficient high-fidelity simulations in turbulent combustion

COMBUSTION AND FLAME, 236.

By: K. Gitushi n, R. Ranade* & T. Echekki n

author keywords: DeepONet; Kernel density estimation; Principal component analysis; Independent component analysis
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 1, 2021

2022 journal article

Principal component analysis based combustion model in the context of a lifted methane/air flame: Sensitivity to the manifold parameters and subgrid closure

COMBUSTION AND FLAME, 244.

author keywords: Turbulent combustion; Principal component analysis; Nonlinear regression; Large eddy simulation; Auto-ignition; Low-dimensional manifolds
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: June 12, 2022

2021 journal article

A data-based hybrid model for complex fuel chemistry acceleration at high temperatures

COMBUSTION AND FLAME, 223, 142–152.

By: S. Alqahtani n & T. Echekki n

author keywords: Data-based hybrid chemistry model; PCA; ANN
Sources: Web Of Science, NC State University Libraries
Added: January 11, 2021

2021 journal article

A numerical study of backdraft phenomena under normal and reduced gravity

FIRE SAFETY JOURNAL, 121.

By: S. Ashok n & T. Echekki n

author keywords: Reduced gravity; Backdraft
UN Sustainable Development Goal Categories
Sources: ORCID, Web Of Science, NC State University Libraries
Added: December 23, 2020

2021 journal article

An Efficient Machine-Learning Approach for PDF Tabulation in Turbulent Combustion Closure

Combustion Science and Technology, 193(7), 1258–1277.

By: R. Ranade n, G. Li*, S. Li* & T. Echekki n

author keywords: PDF turbulent combustion; multi-layer perceptron; self-organized maps; machine-learning
TL;DR: This work introduces an adaptive training algorithm that relies on multi-layer perception (MLP) neural networks for regression and self-organizing maps (SOM) for clustering data to tabulate using different networks to address both the multi-dimensionality of the PDF table as well as the computational efficiency of the proposed algorithm. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: November 7, 2019

2021 article

Experiment-Based Modeling of Turbulent Flames with Inhomogeneous Inlets

Ranade, R., Echekki, T., & Masri, A. R. (2021, November 16). FLOW TURBULENCE AND COMBUSTION, Vol. 11.

By: R. Ranade n, T. Echekki n & A. Masri*

author keywords: Data-based modeling; Kernel density estimation; Principal component analysis; Artificial neural networks
Sources: ORCID, Web Of Science, NC State University Libraries
Added: November 18, 2021

2021 journal article

Large Eddy Simulation on the Effects of Coal Particles Size on Turbulent Combustion Characteristics and NOx Formation Inside a Corner-Fired Furnace

JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME, 143(8).

By: W. Sun*, W. Zhong*, J. Zhang* & T. Echekki n

author keywords: pulverized coal combustion; particle size; tangentially fired furnace; NOx formations; fuel combustion
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 9, 2021

2020 journal article

Application of deep artificial neural networks to multi-dimensional flamelet libraries and spray flames

International Journal of Engine Research.

Tarek Echekki

author keywords: Artificial neural networks; flamelets; chemistry tabulation
TL;DR: The use of neural networks in conjunction with the grouping mechanism as performed in the grouped multi-target artificial neural network produces a significant reduction in the memory footprint and computational costs for the code and widens the operating envelope for higher fidelity engine simulations with detailed mechanisms. (via Semantic Scholar)
Source: ORCID
Added: December 30, 2019

2020 journal article

In the rain with and without an umbrella? The Reynolds transport theorem to the rescue

EUROPEAN JOURNAL OF PHYSICS, 41(1).

By: T. Echekki*

author keywords: Reynolds transport theorem; running in the rain; fluid mechanics
Sources: Web Of Science, ORCID, NC State University Libraries
Added: December 16, 2019

2019 journal article

A framework for data-based turbulent combustion closure: A posteriori validation

Combustion and Flame, 210, 279–291.

By: R. Ranade n & T. Echekki n

Contributors: R. Ranade n & T. Echekki n

author keywords: Data-based modeling; Joint probability density function; Principal component analysis; Artificial neural networks
Source: ORCID
Added: September 17, 2019

2019 journal article

A framework for data-based turbulent combustion closure: A priori validation

Combustion and Flame, 206, 490–505.

By: R. Ranade n & T. Echekki n

Contributors: R. Ranade n & T. Echekki n

Source: ORCID
Added: June 17, 2019

2019 journal article

An ANN based hybrid chemistry framework for complex fuels

FUEL, 241, 625–636.

By: R. Ranade n, S. Alqahtani n, A. Farooq* & T. Echekki n

Contributors: R. Ranade n, S. Alqahtani n, A. Farooq* & T. Echekki n

author keywords: Chemistry reduction; Artificial neural networks; Hydrocarbon oxidation; Pyrolysis
Sources: Web Of Science, ORCID, NC State University Libraries
Added: March 4, 2019

2019 journal article

An extended hybrid chemistry framework for complex hydrocarbon fuels

FUEL, 251, 276–284.

By: R. Ranade n, S. Alqahtani n, A. Farooq* & T. Echekki n

Contributors: R. Ranade n, S. Alqahtani n, A. Farooq* & T. Echekki n

author keywords: Chemistry reduction; Artificial neural networks; Hydrocarbon oxidation; Pyrolysis
Sources: Web Of Science, ORCID, NC State University Libraries
Added: June 17, 2019

2019 article

Large eddy simulation of non-premixed pulverized coal combustion in corner-fired furnace for various excess air ratios

Sun, W., Zhong, W., & Echekki, T. (2019, October). APPLIED MATHEMATICAL MODELLING, Vol. 74, pp. 694–707.

By: W. Sun n, W. Zhong* & T. Echekki n

author keywords: Pulverized-coal combustion; Excess air; NOx emissions; Corner-fired furnace
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 22, 2019

2019 journal article

Large eddy simulation of the interactions between gas and particles in a turbulent corner-injected flow

ADVANCED POWDER TECHNOLOGY, 30(10), 2139–2149.

By: W. Sun n, W. Zhong* & T. Echekki n

author keywords: Corner-injected flows; LES-DPM; Particle dispersion; Turbulence modulation
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: September 9, 2019

2018 journal article

A One-Dimensional Turbulence-Based Closure Model for Combustion LES

Combustion Science and Technology, 192(1), 78–111.

By: J. Miles n & T. Echekki n

author keywords: One-dimensional turbulence; large-eddy simulation; kernel density estimation; turbulent combustion
Sources: ORCID, Crossref, NC State University Libraries
Added: December 30, 2019

2018 journal article

A coupled LES-ODT model for spatially-developing turbulent reacting shear layers

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 127, 458–473.

By: A. Hoffie n & T. Echekki n

author keywords: Large Eddy simulation; One-dimensional turbulence; LES-ODT; Turbulent reacting spatially-developing shear layers
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 16, 2018

2018 journal article

UPSCALING AND DOWNSCALING APPROACHES IN LES-ODT FOR TURBULENT COMBUSTION FLOWS

INTERNATIONAL JOURNAL FOR MULTISCALE COMPUTATIONAL ENGINEERING, 16(1), 45–76.

By: Y. Fu n & T. Echekki n

author keywords: LES-ODT; wavelet transform; Kalman filter
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

An equivalent dissipation rate model for capturing history effects in non-premixed flames

COMBUSTION AND FLAME, 176, 202–212.

By: P. Kundu n, T. Echekki n, Y. Pei* & S. Som*

Contributors: P. Kundu n, T. Echekki n, Y. Pei* & S. Som*

author keywords: Flamelet history; Engine combustion network; Tabulation
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

PARTICLE-FILTER BASED UPSCALING FOR TURBULENT REACTING FLOW SIMULATIONS

INTERNATIONAL JOURNAL FOR MULTISCALE COMPUTATIONAL ENGINEERING, 15(1), 1–17.

By: S. Srivastava n & T. Echekki n

author keywords: turbulent reacting flows; particle filter; large-eddy simulation; multiscale modeling
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Thermal radiation modeling using the LES-ODT framework for turbulent combustion flows

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 104, 1300–1316.

By: S. Ben Rejeb n & T. Echekki n

Contributors: S. Ben Rejeb n & T. Echekki n

author keywords: One-dimensional turbulence; Large-eddy simulation; Combustion; Radiative heat transfer; Monte-Carlo Ray Tracing
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

Toward computationally efficient combustion DNS with complex fuels via principal component transport

COMBUSTION THEORY AND MODELLING, 21(4), 770–798.

By: O. Owoyele n & T. Echekki n

author keywords: turbulent flames; direct numerical simulation; principal component analysis; low-dimensional manifolds
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

Turbulence effects on the autoignition of DME in a turbulent co-flowing jet

COMBUSTION AND FLAME, 178, 70–81.

By: T. Echekki n & S. Ahmed*

Contributors: T. Echekki n & S. Ahmed*

author keywords: Turbulent jet ignition; The one-dimensional turbulence model; Autoignition; DME fuel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 journal article

Asymptotic analysis of steady two-reactant premixed flames using a step-function reaction rate model

COMBUSTION AND FLAME, 172, 280–288.

By: T. Echekki n

Contributors: T. Echekki n

author keywords: Asymptotic analysis; Differential diffusion effects; Preferential diffusion effects
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 conference paper

Improved 4D data assimilation for large eddy simulation of high speed turbulent combustion

46th AIAA Fluid Dynamics Conference. http://www.scopus.com/inward/record.url?eid=2-s2.0-84980367676&partnerID=MN8TOARS

By: J. Edwards, L. Luo, C. Patton, T. Wignall & T. Echekki

Contributors: J. Edwards, L. Luo, C. Patton, T. Wignall & T. Echekki

Source: ORCID
Added: December 30, 2019

2016 conference paper

LES model assessment for high speed combustion

54th AIAA Aerospace Sciences Meeting. http://www.scopus.com/inward/record.url?eid=2-s2.0-85007417906&partnerID=MN8TOARS

By: C. Patton, T. Wignall, J. Edwards & T. Echekki

Contributors: C. Patton, T. Wignall, J. Edwards & T. Echekki

Source: ORCID
Added: December 30, 2019

2016 conference paper

Predicting and accelerating chemistry in high speed reacting flows

54th AIAA Aerospace Sciences Meeting. http://www.scopus.com/inward/record.url?eid=2-s2.0-85007578694&partnerID=MN8TOARS

By: T. Wignall, C. Patton, T. Echekki & J. Edwards

Contributors: T. Wignall, C. Patton, T. Echekki & J. Edwards

Source: ORCID
Added: December 30, 2019

2015 conference paper

4D data assimilation for large Eddy simulation of high speed turbulent combustion

51st AIAA/SAE/ASEE Joint Propulsion Conference. http://www.scopus.com/inward/record.url?eid=2-s2.0-84946088745&partnerID=MN8TOARS

By: J. Edwards, C. Patton, H. Mirgolbabaei, T. Wignall & T. Echekki

Contributors: J. Edwards, C. Patton, H. Mirgolbabaei, T. Wignall & T. Echekki

Source: ORCID
Added: December 30, 2019

2015 journal article

Autoignition of n-heptane in a turbulent co-flowing jet

COMBUSTION AND FLAME, 162(10), 3829–3846.

By: T. Echekki n & S. Ahmed*

Contributors: T. Echekki n & S. Ahmed*

author keywords: Turbulent jet ignition; The one-dimensional turbulence model; Autoignition
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 conference paper

LES model assessment for high speed combustion using mesh-sequenced realizations

51st AIAA/SAE/ASEE Joint Propulsion Conference. http://www.scopus.com/inward/record.url?eid=2-s2.0-84946044335&partnerID=MN8TOARS

By: C. Patton, T. Wignall, J. Edwards & T. Echekki

Contributors: C. Patton, T. Wignall, J. Edwards & T. Echekki

Source: ORCID
Added: December 30, 2019

2015 conference paper

Modelling of combustion noise spectrum using temporal correlations of heat release rate from turbulent premixed flames

21st AIAA/CEAS Aeroacoustics Conference. http://www.scopus.com/inward/record.url?eid=2-s2.0-84962498061&partnerID=MN8TOARS

By: Y. Liu & T. Echekki

Contributors: Y. Liu & T. Echekki

Source: ORCID
Added: December 30, 2019

2015 journal article

Principal component transport in turbulent combustion: A posteriori analysis

COMBUSTION AND FLAME, 162(5), 1919–1933.

By: T. Echekki n & H. Mirgolbabaei n

Contributors: T. Echekki n & H. Mirgolbabaei n

author keywords: Turbulent flames; The one-dimensional turbulence model; Principal component analysis; Low-dimensional manifolds
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

The reconstruction of thermo-chemical scalars in combustion from a reduced set of their principal components

COMBUSTION AND FLAME, 162(5), 1650–1652.

By: H. Mirgolbabaei n & T. Echekki n

Contributors: H. Mirgolbabaei n & T. Echekki n

author keywords: Principal component analysis; Turbulent combustion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

A nonlinear principal component analysis approach for turbulent combustion composition space

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 39(9), 4622–4633.

By: H. Mirgolbabaei n, T. Echekki n & N. Smaoui*

Contributors: H. Mirgolbabaei n, T. Echekki n & N. Smaoui*

author keywords: Turbulent combustion; Nonlinear principal component analysis; Autoignition
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Nonlinear reduction of combustion composition space with kernel principal component analysis

COMBUSTION AND FLAME, 161(1), 118–126.

By: H. Mirgolbabaei n & T. Echekki n

Contributors: H. Mirgolbabaei n & T. Echekki n

author keywords: Kernel principal component analysis; Principal component analysis; Turbulent nonpremixed flames
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

A novel Kalman filter based approach for multiscale reacting flow simulations

COMPUTERS & FLUIDS, 81, 1–9.

By: S. Srivastava n & T. Echekki n

Contributors: S. Srivastava n & T. Echekki n

author keywords: Turbulent reacting flows; Kalman filtering; Large-eddy simulation
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

A novel principal component analysis-based acceleration scheme for LES-ODT: An a priori study

COMBUSTION AND FLAME, 160(5), 898–908.

By: H. Mirgolbabaei n & T. Echekki n

Contributors: H. Mirgolbabaei n & T. Echekki n

author keywords: Turbulent flames; The one-dimensional turbulence model; Principal component analysis
TL;DR: A parameterization of the composition space based on principal component analysis (PCA) is proposed to represent the transport equations with the one-dimensional turbulence (ODT) solutions of a hybrid large-eddy simulation (LES) and ODT scheme and shows that the different regimes are reproduced using only three principal components for the thermo-chemical scalars. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 conference paper

A novel principal component analysis-based acceleration scheme for LES-ODT: An a priori study

51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013. http://www.scopus.com/inward/record.url?eid=2-s2.0-84881421712&partnerID=MN8TOARS

By: H. Mirgolbabaei & T. Echekki

Contributors: H. Mirgolbabaei & T. Echekki

Source: ORCID
Added: December 30, 2019

2012 journal article

A combination of fire and dispersion modeling techniques for simulating a warehouse fire

International Journal of Safety and Security Engineering, 2(4), 368–380.

By: A. Daly, P. Zannetti & T. Echekki*

Contributors: A. Daly, P. Zannetti & T. Echekki*

Source: ORCID
Added: December 30, 2019

2012 conference paper

An ODT-based flame embedding approach for turbulent non-premixed combustion

50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition.

By: S. Sedhai n & T. Echekki n

Contributors: S. Sedhai n & T. Echekki n

Source: ORCID
Added: December 30, 2019

2012 conference paper

An ODT-based multiscale radiative transport model in participating (absorbing-emitting) gray media

50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition.

By: Y. Shekhawat n & T. Echekki n

Contributors: Y. Shekhawat n & T. Echekki n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: ORCID
Added: December 30, 2019

2012 journal article

Complex injection strategies for hydrogen-fueled HCCI engines

FUEL, 97, 418–427.

By: B. Gowda n & T. Echekki n

Contributors: B. Gowda n & T. Echekki n

author keywords: One-dimensional turbulence; Homogeneous charge compression ignition (HCCI); Turbulent combustion; Fuel injection; Hydrogen
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 journal article

LES-ODT study of turbulent premixed interacting flames

COMBUSTION AND FLAME, 159(2), 609–620.

By: J. Park n & T. Echekki n

Contributors: J. Park n & T. Echekki n

author keywords: Turbulent premixed flames; The one-dimensional turbulence model; Preferential diffusion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 journal article

One-dimensional turbulence simulations of hydrogen-fueled HCCI combustion

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 37(9), 7912–7924.

By: B. Gowda & T. Echekki*

Contributors: B. Gowda & T. Echekki*

author keywords: One-dimensional turbulence; Homogeneous charge compression ignition (HCCI); Turbulent combustion; Fuel injection; Hydrogen
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 journal article

Investigation of lifted jet flames stabilization mechanism using RANS simulations

FIRE SAFETY JOURNAL, 46(5), 254–261.

By: W. Wang* & T. Echekki*

Contributors: W. Wang* & T. Echekki*

author keywords: Lift-off; Stability; CFX; EDM; RANS; Triple flames
TL;DR: The simulation results show that the EDM model reproduces a mean partially-premixed flame structure at the leading edge of the lifted flame, with very good predictions of the lift-off height for lifted flames without co-flow. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 journal article

One-dimensional turbulence model simulations of autoignition of hydrogen/carbon monoxide fuel mixtures in a turbulent jet

COMBUSTION AND FLAME, 158(2), 327–344.

By: K. Gupta* & T. Echekki*

Contributors: K. Gupta* & T. Echekki*

author keywords: Turbulent flames; Autoignition; The one-dimensional turbulence model; Differential diffusion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2011 book

The emerging role of multiscale methods in turbulent combustion

In Fluid Mechanics and its Applications (Vol. 95, pp. 177–192).

By: T. Echekki n

Contributors: T. Echekki n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

2011 book

The one-dimensional-turbulence model

In Fluid Mechanics and its Applications (Vol. 95, pp. 249–276).

By: T. Echekki n, A. Kerstein & J. Sutherland

Contributors: T. Echekki n, A. Kerstein & J. Sutherland

Source: ORCID
Added: December 30, 2019

2011 book

Turbulent combustion: Concepts, governing equations and modeling strategies

In Fluid Mechanics and its Applications (Vol. 95, pp. 19–39).

By: T. Echekki n & E. Mastorakos

Contributors: T. Echekki n & E. Mastorakos

TL;DR: This chapter attempts to review the governing equations from the perspective of modern solution techniques, which take root in some of the classical strategies adopted to address turbulent combustion modeling. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: December 30, 2019

2010 conference paper

The LES-ODT model for turbulent premixed flames

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. http://www.scopus.com/inward/record.url?eid=2-s2.0-78649864613&partnerID=MN8TOARS

By: T. Echekki & J. Park

Contributors: T. Echekki & J. Park

Source: ORCID
Added: December 30, 2019

2010 journal article

The regime diagram for premixed flame kernel-vortex interactions-Revisited

PHYSICS OF FLUIDS, 22(4).

By: N. Vasudeo n, T. Echekki n, M. Day* & J. Bell*

Contributors: N. Vasudeo n, T. Echekki n, M. Day* & J. Bell*

author keywords: chemically reactive flow; combustion; flames; flow simulation; turbulence; vortices
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2010 book

Turbulent combustion modeling: Advances, new trends and perspectives

Berlin: Springer Verlag.

Tarek Echekki

Ed(s): T. Echekki

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Hydrogen autoignition in a turbulent jet with preheated co-flow air

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 34(19), 8352–8377.

By: T. Echekki n & K. Gupta n

Contributors: T. Echekki n & K. Gupta n

author keywords: Turbulent flames; One-dimensional turbulence model; Turbulent diffusion flames
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2009 journal article

Multiscale methods in turbulent combustion: Strategies and computational challenges

Computational Science & Discovery, 3, 013001.

By: T. Echekki n

TL;DR: A general overview of different strategies adopted for multiscale solutions of turbulent combustion flows is presented, including (i) closure models for atomistic processes, (ii) multigrid and multiresolution strategies, (iii) flame-embedding strategies and (iv) hybrid large-eddy simulation-low-dimensional strategies. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2009 journal article

ODT Closure with Extinction and Reignition in Piloted Methane-Air Jet Diffusion Flames

COMBUSTION SCIENCE AND TECHNOLOGY, 181(4), 570–596.

By: B. Ranganath n & T. Echekki n

Contributors: B. Ranganath n & T. Echekki n

author keywords: ODT-based closure; Piloted-jet diffusion flames; Turbulent non-premixed combustion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 journal article

A low-dimensional stochastic closure model for combustion large-eddy simulation

JOURNAL OF TURBULENCE, 9(2), 1–35.

By: S. Cao n & T. Echekki n

Contributors: S. Cao n & T. Echekki n

author keywords: one-dimensional turbulence; large-eddy simulation; combustion; LES-ODT
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 journal article

One-dimensional turbulence-based closure with extinction and reignition

COMBUSTION AND FLAME, 154(1-2), 23–46.

By: B. Ranganath n & T. Echekki n

Contributors: B. Ranganath n & T. Echekki n

author keywords: ODT-based closure; extinction and reignition; turbulent nonpremixed combustion; piloted jet diffusion flames
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 journal article

Stochastic modeling of autoignition in turbulent non-homogeneous hydrogen-air mixtures

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 33(10), 2596–2603.

By: T. Echekki*

Contributors: T. Echekki*

author keywords: autoignition; hydrogen chemistry
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 journal article

Stochastic modeling of finite-rate chemistry effects in hydrogen-air turbulent jet diffusion flames with helium dilution

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 33(23), 7295–7306.

By: S. Zhang n & T. Echekki n

Contributors: S. Zhang n & T. Echekki n

author keywords: Turbulent flames; The one-dimensional turbulence model; Turbulent diffusion flames
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2007 journal article

A regime diagram for premixed flame kernel-vortex interactions

PHYSICS OF FLUIDS, 19(4).

By: T. Echekki n & H. Kolera-Gokula n

Contributors: T. Echekki n & H. Kolera-Gokula n

Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2007 journal article

Autoignition in nonhomogeneous mixtures: Conditional statistics and implications for modeling

COMBUSTION AND FLAME, 151(1-2), 120–141.

By: S. Cao n & T. Echekki n

Contributors: S. Cao n & T. Echekki n

author keywords: direct numerical simulations; autoignition; turbulent combustion modeling; conditional moment closure
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2007 journal article

The mechanism of unsteady downstream interactions of premixed hydrogen-air flames

COMBUSTION SCIENCE AND TECHNOLOGY, 179(11), 2309–2334.

By: H. Kolera-Gokula n & T. Echekki n

Contributors: H. Kolera-Gokula n & T. Echekki n

author keywords: direct numerical simulations; flame extinction; flame-vortex interactions; flame kernel-vortex interactions
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2006 journal article

Direct numerical simulation of premixed flame kernel-vortex interactions in hydrogen-air mixtures

COMBUSTION AND FLAME, 146(1-2), 155–167.

By: H. Kolera-Gokula* & T. Echekki*

Contributors: H. Kolera-Gokula* & T. Echekki*

author keywords: direct numerical simulations; flame extinction; flame-vortex interactions; flame kernel-vortex interactions; premixed flames
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2006 journal article

On the role of heat and mass transport during the mutual annihilation of two premixed propane-air flames

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 49(25-26), 5075–5080.

By: B. Ranganath* & T. Echekki*

Contributors: B. Ranganath* & T. Echekki*

Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2006 journal article

One-Dimensional Turbulence-based closure for turbulent non-premixed flames

PROGRESS IN COMPUTATIONAL FLUID DYNAMICS, 6(7), 409–418.

By: B. Ranganath n & T. Echekki n

Contributors: B. Ranganath n & T. Echekki n

author keywords: One-Dimensional Turbulence (ODT); turbulent combustion modelling; the flamelet model; turbulent non-premixed combustion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2006 journal article

Proper orthogonal decomposition analysis of autoignition simulation data of nonhomogeneous hydrogen-air mixtures

COMBUSTION AND FLAME, 144(1-2), 126–138.

By: S. Danby n & T. Echekki n

Contributors: S. Danby n & T. Echekki n

author keywords: premixed laminar flames; laminar flame quenching; proper orthogonal decomposition (POD); computation and theory
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2005 journal article

Effects of preferential and differential diffusion on the mutual annihilation of two premixed hydrogen-air flames

COMBUSTION THEORY AND MODELLING, 9(4), 659–672.

By: B. Ranganath n & T. Echekki n

Contributors: B. Ranganath n & T. Echekki n

author keywords: premixed laminar flames; laminar flame quenching; computation and theory
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2004 journal article

Numerical investigation of buoyancy effects on triple flame stability

COMBUSTION SCIENCE AND TECHNOLOGY, 176(3), 381–407.

By: T. Echekki n

author keywords: triple flames; flame stability; partially premixed flames
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Numerical investigation of buoyancy effects on triple flame stability

Combustion Science and Technology, 176(3), 381–407. http://www.scopus.com/inward/record.url?eid=2-s2.0-1542316705&partnerID=MN8TOARS

By: T. Echekki, J. Chen & U. Hegde

Contributors: T. Echekki, J. Chen & U. Hegde

Source: ORCID
Added: December 30, 2019

2003 journal article

Direct numerical simulation of autoignition in non-homogeneous hydrogen-air mixtures

COMBUSTION AND FLAME, 134(3), 169–191.

By: T. Echekki n & J. Chen*

Contributors: T. Echekki n & J. Chen*

author keywords: autoignition; hydrogen oxidation; DNS; turbulent combustion
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2002 article

High-temperature combustion in autoigniting non-homogeneous hydrogen/air mixtures

PROCEEDINGS OF THE COMBUSTION INSTITUTE, Vol. 29, pp. 2061–2068.

By: T. Echekki n & J. Chen*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2002 journal article

High-temperature combustion in autoigniting non-homogeneous hydrogen/air mixtures

Proceedings of the Combustion Institute, 29(2), 2061–2068. http://www.scopus.com/inward/record.url?eid=2-s2.0-84915794542&partnerID=MN8TOARS

By: T. Echekki & J. Chen

Contributors: T. Echekki & J. Chen

Source: ORCID
Added: December 30, 2019

2002 book

One-dimensional stochastic simulation of advection-diffusion-reaction couplings in turbulent combustion

In Fluid Mechanics and its Applications (Vol. 70, pp. 113–124).

By: J. Hewson*, A. Kerstein* & T. Echekki*

Contributors: J. Hewson*, A. Kerstein* & T. Echekki*

Source: ORCID
Added: December 30, 2019

2001 journal article

'One-dimensional turbulence' simulation of turbulent jet diffusion flames: Model formulation and illustrative applications

Combustion and Flame, 125(3), 1083–1105.

By: T. Echekki*, A. Kerstein*, T. Dreeben* & J. Chen*

Contributors: T. Echekki*, A. Kerstein*, T. Dreeben* & J. Chen*

Source: ORCID
Added: December 30, 2019

2001 journal article

Numerical study of buoyancy effects on the structure and propagation of triple flames

Combustion Theory and Modelling, 5(4), 499–515.

By: J. Chen* & T. Echekki*

Contributors: J. Chen* & T. Echekki*

Source: ORCID
Added: December 30, 2019

1999 journal article

Analysis of the contribution of curvature to premixed flame propagation

Combustion and Flame, 118(1-2), 308–311.

By: T. Echekki* & J. Chen*

Contributors: T. Echekki* & J. Chen*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

1999 journal article

The mechanism of two-dimensional pocket formation in lean premixed methane-air flames with implications to turbulent combustion

Combustion and Flame, 116(1-2), 15–48.

By: J. Chen*, T. Echekki* & W. Kollmann*

Contributors: J. Chen*, T. Echekki* & W. Kollmann*

Source: ORCID
Added: December 30, 2019

1998 journal article

Statistics of flame displacement speeds from computations of 2-D unsteady methane-air flames

Symposium (International) on Combustion, 27(1), 833–839.

By: N. Peters*, P. Terhoeven*, J. Chen* & T. Echekki*

Contributors: N. Peters*, P. Terhoeven*, J. Chen* & T. Echekki*

Source: ORCID
Added: December 30, 2019

1998 journal article

Structure and propagation of methanol-air triple flames

Combustion and Flame, 114(1-2), 231–245.

By: T. Echekki* & J. Chen*

Contributors: T. Echekki* & J. Chen*

Source: ORCID
Added: December 30, 2019

1997 journal article

A quasi-one-dimensional premixed flame model with cross-stream diffusion

Combustion and Flame, 110(3), 335–350.

By: T. Echekki*

Contributors: T. Echekki*

Source: ORCID
Added: December 30, 2019

1996 journal article

Negative flame speed in an unsteady 2-D premixed flame: A computational study

Symposium (International) on Combustion, 26(1), 323–329.

By: I. Gran*, T. Echekki* & J. Chen*

Contributors: I. Gran*, T. Echekki* & J. Chen*

Source: ORCID
Added: December 30, 2019

1996 journal article

The mechanism of mutual annihilation of stoichiometric premixed methane-air flames

Symposium (International) on Combustion, 26(1), 855–863.

By: T. Echekki*, J. Chen* & I. Gran*

Contributors: T. Echekki*, J. Chen* & I. Gran*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

1996 journal article

Unsteady strain rate and curvature effects in turbulent premixed methane-air flames

Combustion and Flame, 106(1-2), 184–202. http://www.scopus.com/inward/record.url?eid=2-s2.0-0030005570&partnerID=MN8TOARS

By: T. Echekki & J. Chen

Contributors: T. Echekki & J. Chen

Source: ORCID
Added: December 30, 2019

1993 journal article

A Simplified Reaction Rate Model and its Application to the Analysis of Premixed Flames

Combustion Science and Technology, 89(5-6), 293–315.

By: J. Ferziger* & T. Echekki*

Contributors: J. Ferziger* & T. Echekki*

author keywords: STRAINED PREMIXED FLAMES; FLAME STRUCTURE; KINETICS MODELING OF OVERALL RATES
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

1993 journal article

Studies of Curvature Effects on Laminar Premixed Flames: Stationary Cylindrical Flames

Combustion Science and Technology, 90(1-4), 231–252.

By: T. Echekki* & J. Ferziger*

Contributors: T. Echekki* & J. Ferziger*

author keywords: CURVED FLAMES; FLAME STRUCTURE; FLAME MODELING
Source: ORCID
Added: December 30, 2019

1992 journal article

A study of the laminar flame tip and implications for premixed turbulent combustion

Combustion Science and Technology, 81(1-3), 45–73.

By: T. Poinsot*, T. Echekki* & M. Mungal*

Contributors: T. Poinsot*, T. Echekki* & M. Mungal*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

1991 journal article

Flame speed measurements at the tip of a slot burner: Effects of flame curvature and hydrodynamic stretch

Symposium (International) on Combustion, 23(1), 455–461.

By: T. Echekki* & M. Mungal*

Contributors: T. Echekki* & M. Mungal*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: December 30, 2019

Employment

Updated: May 29th, 2019 16:46

2002 - present

North Carolina State University Raleigh, NC, US
Professor Mechanical and Aerospace Engineering

Education

Updated: May 29th, 2019 16:50

Stanford University Stanford, CA, US
PhD Mechanical Engineering

1986 - 1987

Stanford University Stanford, CA, US
MS Mechanical Engineering

1983 - 1985

Washington University in Saint Louis Saint Louis, MO, US
BS Mechanical Engineering

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