4th International Conference on Nanostructures , 2012-03-12

Title : ( DSMC Simulation of Shear Driven Flow in Nano Gap Structures )

Authors: Omid Ejtehadi , Ehsan Roohi , Javad Abolfazli Esfahani ,

Citation: BibTeX | EndNote

In the present work, argon flow confined within a gap at nanoscale between two moving parallel plates and maintained at the same uniform temperature is simulated using direct simulation Monte Carlo (DSMC) method. Simulations are performed to investigate rarefaction effects on velocity, temperature, heat flux, shear stress and entropy profiles. The specific contribution of this work is detailed discussion on heat flux and shear stress behavior of the gas besides calculation of entropy as a thermodynamics property which shows the molecular chaos. The results show that, as the flow rarifies the bulk velocity of the domain decreases, however the absolute amount of non-dimensional temperature, heat fluxes, and shear stresses increases. Investigation of entropy profiles shows that by increasing the Knudsen number entropy tends to a finite value in the domain.

Keywords

, DSMC; Nano, Couette Flow; Heat Flux; Shear Stress;
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@inproceedings{paperid:1027148,
author = {Ejtehadi, Omid and Roohi, Ehsan and Abolfazli Esfahani, Javad},
title = {DSMC Simulation of Shear Driven Flow in Nano Gap Structures},
booktitle = {4th International Conference on Nanostructures},
year = {2012},
location = {Kish Island, IRAN},
keywords = {DSMC; Nano-Couette Flow; Heat Flux; Shear Stress; Entropy},
}

[Download]

%0 Conference Proceedings
%T DSMC Simulation of Shear Driven Flow in Nano Gap Structures
%A Ejtehadi, Omid
%A Roohi, Ehsan
%A Abolfazli Esfahani, Javad
%J 4th International Conference on Nanostructures
%D 2012

[Download]