@article{cheng_kuznetsov_2005, title={Heat transfer in a laminar flow in a helical pipe filled with a fluid saturated porous medium}, volume={44}, ISSN={["1778-4166"]}, DOI={10.1016/j.ijthermalsci.2004.12.009}, abstractNote={This paper presents the first attempt to investigate numerically heat transfer in a helical pipe filled with a fluid saturated porous medium; the analysis is based on the full momentum equation for porous media that accounts for the Brinkman and Forchheimer extensions of the Darcy law as well as for the flow inertia. Numerical computations are performed in an orthogonal helical coordinate system. The effects of the Darcy number, the Forchheimer coefficient as well as the Dean and Germano numbers on the axial flow velocity, secondary flow, temperature distribution, and the Nusselt number are investigated.}, number={8}, journal={INTERNATIONAL JOURNAL OF THERMAL SCIENCES}, author={Cheng, LP and Kuznetsov, AV}, year={2005}, month={Aug}, pages={787–798} }
 @article{cheng_kuznetsov_2005, title={Investigation of laminar flow in a helical pipe filled with a fluid saturated porous medium}, volume={24}, ISSN={["1873-7390"]}, DOI={10.1016/j.euromechflu.2004.08.002}, abstractNote={Laminar flow in a helical pipe filled with a fluid saturated porous medium is investigated numerically. The analysis is based on a full momentum equation for the flow in porous media that accounts for the Brinkman and Forchheimer extensions of the Darcy law as well as for the flow inertia. Accounting for the flow inertia is shown to be important for predicting secondary flow in a helical pipe. The effects of the Darcy number, the Forchheimer coefficient as well as the curvature and torsion of the helical pipe on the axial flow velocity and secondary flow are investigated numerically.}, number={3}, journal={EUROPEAN JOURNAL OF MECHANICS B-FLUIDS}, author={Cheng, L and Kuznetsov, AV}, year={2005}, pages={338–352} }
 @article{cheng_kuznetsov_sandeep_2005, title={Mathematical modelling of two-phase non-Newtonian flow in a helical pipe}, volume={48}, ISSN={["1097-0363"]}, DOI={10.1002/fld.950}, abstractNote={Governing equations for a two‐phase 3D helical pipe flow of a non‐Newtonian fluid with large particles are derived in an orthogonal helical coordinate system. The Lagrangian approach is utilized to model solid particle trajectories. The interaction between solid particles and the fluid that carries them is accounted for by a source term in the momentum equation for the fluid. The force‐coupling method (FCM), developed by M.R. Maxey and his group, is adopted; in this method the momentum source term is no longer a Dirac delta function but is spread on a numerical mesh by using a finite‐sized envelop with a spherical Gaussian distribution. The influence of inter‐particle and particle–wall collisions is also taken into account. Copyright © 2005 John Wiley & Sons, Ltd.}, number={6}, journal={INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS}, author={Cheng, L and Kuznetsov, AV and Sandeep, KP}, year={2005}, month={Jun}, pages={649–670} }
 @article{seminario_ma_agapito_yan_araujo_bingi_vadlamani_chagarlamudi_sudarshan_myrick_et al._2004, title={Clustering effects on discontinuous gold film NanoCells}, volume={4}, ISSN={["1533-4899"]}, DOI={10.1166/jnn.2004.104}, abstractNote={Reproducible negative differential resistance (NDR)-like switching behavior is observed in NanoCells. This behavior is attributed to the formation of filaments and clusters between the discontinuous gold films. Control experiments are performed by self-assembly of insulating molecules between the gold islands and conducting molecules on these islands. Additional control experiments are performed by removing the filaments and clusters between islands using a piranha bath. The results are consistent with theoretical predictions and extend the domain of molecular electronics based in organic molecules to include nanosized clusters as active units. This facilitates a scenario where synthetically accessible organic molecules, with defined characteristics, can be adjusted by metallic nanoclusters as an in situ fine-tuning element, able to compensate for the lack of addressing in the nanosize regime.}, number={7}, journal={JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY}, author={Seminario, JM and Ma, YF and Agapito, LA and Yan, LM and Araujo, RA and Bingi, S and Vadlamani, NS and Chagarlamudi, K and Sudarshan, TS and Myrick, ML and et al.}, year={2004}, month={Sep}, pages={907–917} }
 @article{kuznetsov_cheng_xiong_2003, title={Investigation of turbulence effects on forced convection in a composite porous/fluid duct: Constant wall flux and constant wall temperature cases}, volume={39}, ISSN={["1432-1181"]}, DOI={10.1007/S00231-002-0377-9}, number={7}, journal={HEAT AND MASS TRANSFER}, author={Kuznetsov, A and Cheng, L and Xiong, M}, year={2003}, month={Jul}, pages={613–623} }
 @article{kuznetsov_cheng_xiong_2002, title={Effects of thermal dispersion and turbulence in forced convection in a composite parallel-plate channel: Investigation of constant wall heat flux and constant wall temperature cases}, volume={42}, ISSN={["1040-7782"]}, DOI={10.1080/10407780290059602}, abstractNote={In this article, a composite parallel-plate channel whose central portion is occupied by a clear fluid and whose peripheral portion is occupied by a fluid saturated porous medium, is considered. The flow in the porous region of the channel is assumed to be laminar, governed by the Brinkman-Forchheimer-extended Darcy equation, while the flow in the clear fluid region of the channel is assumed to be turbulent. The validity of this laminar/turbulent assumption is validated by estimating Reynolds numbers in the clear fluid and porous regions of the channel. Although the flow in the porous region remains laminar, it is still fast enough for the quadratic drag (Forchheimer) effects to be important. In this situation, hydrodynamic mixing of the interstitial fluid at the pore scale becomes important and may cause significant thermal dispersion. It is shown that thermal dispersion may result in some counterintuitive effects, such as the increase of the Nusselt number when the width of the clear fluid region in the center of the channel is decreased.}, number={4}, journal={NUMERICAL HEAT TRANSFER PART A-APPLICATIONS}, author={Kuznetsov, AV and Cheng, L and Xiong, M}, year={2002}, month={Sep}, pages={365–383} }