بیست و پنجمین کنفرانس مکانیک , 2017-05-02

Title : ( Gas Separation Between Asymmetrically Structured Walls )

Authors: Ehsan Roohi , Ali Lotfian , Vahid Shahabi ,

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Abstract

Here, flow in the gap between periodically structured surfaces is studied when the reflection symmetry along the channel axis is broken. A series of triangular fins with alternating specular and diffuse walls are placed on the cold bottom wall while the top wall is straight and kept at a higher temperature. The flow induction mechanism in this geometry is shown to be the same as the Crookes radiometer process. Here, we consider a mixture of two molecules and focus on the gas separation performance of the pump. Direct simulation Monte Carlo (DSMC) simulations are performed to investigate separation performance over a broad range of Knudsen numbers. Our simulation results reveal that the proposed geometry could efficiently separate light and heavy gas particles.

Keywords

, Thermally driven flow, DSMC, Particle separation, Radiometric flow
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@inproceedings{paperid:1062950,
author = {Roohi, Ehsan and Lotfian, Ali and Shahabi, Vahid},
title = {Gas Separation Between Asymmetrically Structured Walls},
booktitle = {بیست و پنجمین کنفرانس مکانیک},
year = {2017},
location = {تهران, IRAN},
keywords = {Thermally driven flow; DSMC; Particle separation; Radiometric flow},
}

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%0 Conference Proceedings
%T Gas Separation Between Asymmetrically Structured Walls
%A Roohi, Ehsan
%A Lotfian, Ali
%A Shahabi, Vahid
%J بیست و پنجمین کنفرانس مکانیک
%D 2017

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