Yu Feng

Works (18)

Updated: July 5th, 2023 15:48

2018 journal article

An in silico inter-subject variability study of extra-thoracic morphology effects on inhaled particle transport and deposition

JOURNAL OF AEROSOL SCIENCE, 123, 185–207.

By: Y. Feng*, J. Zhao *, C. Kleinstreuer n, Q. Wang *, J. Wang *, D. Wu *, J. Lin *

author keywords: Individualized pulmonary drug delivery; Health risk assessment; Precise treatment; Computational fluid-particle dynamics (CFPD); Inter-subject variability; Virtual population study
TL;DR: An experimentally validated Computational Fluid-Particle Dynamics (CFPD) model based on the Euler-Lagrange method is developed and results indicate that the glottis constriction is the morphological parameter that significantly impacts the inhaled particle dynamics in the respiratory tract. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: October 19, 2018

2016 journal article

Computational transport, phase change and deposition analysis of inhaled multicomponent droplet-vapor mixtures in an idealized human upper lung model

JOURNAL OF AEROSOL SCIENCE, 96, 96–123.

By: Y. Feng n, C. Kleinstreuer n, N. Castro* & A. Rostami*

author keywords: Hygroscopic droplet growth; Multi-component droplet-vapor interaction modeling; Multi-component mixture plus discrete-droplet (MCM-DD) model; Inhaled droplet-reduction (IDR) method; Electronic cigarettes
TL;DR: Results indicate that liquid–vapor phase change induces hygroscopic growth of droplets, which in turn impacts significantly the deposition concentrations of aerosols via inertial impaction, secondary flows, Brownian motion, and the vapor-specific absorption rates. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Evaporation and condensation of multicomponent electronic cigarette droplets and conventional cigarette smoke particles in an idealized G3-G6 triple bifurcating unit

JOURNAL OF AEROSOL SCIENCE, 80, 58–74.

By: Y. Feng n, C. Kleinstreuer n & A. Rostami*

author keywords: Electronic cigarette (EC); Conventional cigarette smoke particles (CSPs); Multicomponent droplets; Deposition; Droplet-vapor interaction modeling; Multicomponent Mixture plus Discrete; Droplet (MM-DD) model
TL;DR: The results indicate that EC-droplets, being more hygroscopic than cigarette smoke particles, tend to grow larger in maximum size in a typically highly humid environment. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2014 conference paper

DDPM-DEM simulations of particulate flows in human tracheobronchial airways

Proceedings of the ASME International Mechanical Engineering Congress and Exposition, 2013, vol 3B.

By: Y. Feng n & C. Kleinstreuer n

TL;DR: Twoway coupling of the Dense Dispersed Phase Model (DDPM) combined with the Discrete Element Method (DEM) has been introduced into the commercial CFD software via inhouse codes, and more comprehensive and robust computational models based on the DDPM� DEM method have been developed, which can accurately predict the dynamics of dense particle suspensions. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2014 journal article

Micron-particle transport, interactions and deposition in triple lung-airway bifurcations using a novel modeling approach

JOURNAL OF AEROSOL SCIENCE, 71, 1–15.

By: Y. Feng n & C. Kleinstreuer n

author keywords: Dense discrete phase model (DDPM); Discrete element method (DEM); Lung aerosol dynamics; Triple bifurcations; Particle-particle interactions; Model combination criteria
TL;DR: The validity and necessity of the DDPM–DEM approach for different lung airway generations were numerically investigated, and a new criterion for CF–PD model combination in terms of a relationship between inlet-particle stacking-volume fraction, ϕ, and percentage-of-fate changing particles, Δ β p is proposed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Analysis of non-spherical particle transport in complex internal shear flows

PHYSICS OF FLUIDS, 25(9).

By: Y. Feng n & C. Kleinstreuer n

TL;DR: The one-way coupled Euler-Lagrange method enhanced by Euler's rotation equations is then employed to simulate laminar-turbulent flow in a subject-specific lung-airway model to gain basic insight into the dynamics of non-spherical particles. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 review

Computational Analysis of Non-Spherical Particle Transport and Deposition in Shear Flow With Application to Lung Aerosol Dynamics-A Review

[Review of ]. JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 135(2).

By: C. Kleinstreuer n & Y. Feng n

author keywords: lung-aerosol dynamics; nonspherical particles; particle transport and deposition
MeSH headings : Aerosols; Biological Transport; Biomechanical Phenomena; Humans; Hydrodynamics; Lung / metabolism; Lung / physiology; Mechanical Phenomena
TL;DR: Focusing on the modeling and simulation of inhaled aerosols, theories for both spherical and nonspherical particles are reviewed to analyze the contrasting transport and deposition phenomena of spheres and equivalent spheres versus ellipsoids and fibers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 conference paper

DDPM-DEM simulations of particulate flows in human tracheobronchial airways

ASME 2013 International Mechanical Engineering Congress & Exposition.

By: Y. Feng & C. Kleinstreuer

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

2013 review

Lung Deposition Analyses of Inhaled Toxic Aerosols in Conventional and Less Harmful Cigarette Smoke: A Review

[Review of ]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 10(9), 4454–4485.

By: C. Kleinstreuer n & Y. Feng n

author keywords: conventional or less harmful cigarettes; aerosol toxicology; cigarette smoke droplet; vapor deposition; second-hand smoke; impact analysis; computational fluid-particle dynamics
MeSH headings : Aerosols; Humans; Inhalation Exposure; Lung / metabolism; Smoke / adverse effects; Tobacco; Tobacco Products / toxicity; Vulnerable Populations
TL;DR: An overview of contributions mainly published between 2009 and 2013, focusing on the potential health risks of toxicants in cigarette smoke, progress made in different approaches of impact analyses for inhaled toxic aerosols, as well as challenges and future directions are served. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Comments on paper: "Transport and deposition on ellipsoidal fibers in low reynolds number flows" from L. Tian, G. Ahmadi, Z. Wang, PK Hopke, Journal of Aerosol Science, 45, (2012) 1-18

Journal of Aerosol Science, 52, 127–128.

By: Y. Feng

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

2012 conference paper

Computational analysis of thermal performance and entropy generation of nanofluid flow in microchannels

Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference, 2012, 135–144.

By: J. Li, C. Kleinstreuer & Y. Feng

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

2012 article

Thermal Nanofluid Property Model With Application to Nanofluid Flow in a Parallel Disk System-Part II: Nanofluid Flow Between Parallel Disks

Feng, Y., & Kleinstreuer, C. (2012, May). JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, Vol. 134.

By: Y. Feng n & C. Kleinstreuer n

author keywords: nanofluid flow; augmented heat transfer; parallel disk system
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 article

Thermal Nanofluid Property Model With Application to Nanofluid Flow in a Parallel-Disk System-Part I: A New Thermal Conductivity Model for Nanofluid Flow

Kleinstreuer, C., & Feng, Y. (2012, May). JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, Vol. 134.

By: C. Kleinstreuer n & Y. Feng n

author keywords: nanofluids; thermal conductivity enhancement; new theory; data comparisons
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Vapor deposition during cigarette smoke inhalation in a subject-specific human airway model

JOURNAL OF AEROSOL SCIENCE, 53, 40–60.

By: Z. Zhang n, C. Kleinstreuer n & Y. Feng n

author keywords: Cigarette smoke; Respiratory vapor mass transfer and deposition; Transient puffing and inhalation; Subject-specific human upper airways; Computational analysis; Quantitative data sets for toxicologists
TL;DR: Results show that vapor deposition is strongly influenced by its property values as well as inhalation waveform, i.e., puffing behavior, and a correction factor has been proposed, considering vapor transport delay, in order to calculate efficiently actual deposition fraction values under transient puffing condition. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2011 review

Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review

[Review of ]. NANOSCALE RESEARCH LETTERS, 6.

By: C. Kleinstreuer n & Y. Feng n

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

2010 journal article

Nanofluid convective heat transfer in a parallel-disk system

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 53(21-22), 4619–4628.

By: Y. Feng n & C. Kleinstreuer n

author keywords: Nanofluid; Convective heat transfer; Impinging-jet; Parallel disk; Entropy generation; Wall temperature control
Source: Web Of Science
Added: August 6, 2018

2010 journal article

The central oblique collision efficiency of spherical nanoparticles in the brownian coagulation

Modern Physics Letters. B, Condensed Matter Physics, Statistical Physics, Applied Physics, 24(14), 1523–1531.

By: Y. Wang, J. Lin & Y. Feng

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

chapter

Computational analysis of enhanced cooling performance and pressure drop for nanofluid flow in microchannels

Kleinstreuer, C., Li, J., & Feng, Y. In E. M. W.J. Minkowycz, Sparrow, & J. P. Abraham (Eds.), Advanced in numerical heat transfer (pp. 250–273). Boca Raton: CRC Press/Taylor & Francis Group.

By: C. Kleinstreuer, J. Li & Y. Feng

Ed(s): E. W.J. Minkowycz, . Sparrow & J. Abraham

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

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