International Communication in Heat and Mass Transfer, ( ISI ), Volume (38), No (1), Year (2011-12) , Pages (1443-1448)

Title : ( DSMC simulation of subsonic flow through nanochannels and micro/nano backward-facing steps )

Authors: Masoud Darbandi , Ehsan Roohi ,

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In this study, we use direct simulation Monte Carlo method to simulate subsonic flow in nanochannels and micro/nanoscale backward-facing (BF) step considering a wide range of Knudsen number regimes. The nanochannel flow simulation indicates that the nanoscale flow through the nanochannel resembles unique features such as encountering negative pressure deviation behavior and observing flat velocity profiles at higher Knudsen number regimes. On the other hand, the micro/nano BF step flow simulations demonstrate that the length of separation region considerably decreases as the flow becomes more rarefied and approaches the transition regime. Meanwhile, the variations in the flow properties are much slower in the mid-transition and free-molecular regimes compared with the slip and early transition regime cases.

Keywords

, DSMC Nanoflow Microflow Nanochannel Backward, facing step Subsonic
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@article{paperid:1024246,
author = {Masoud Darbandi and Roohi, Ehsan},
title = {DSMC simulation of subsonic flow through nanochannels and micro/nano backward-facing steps},
journal = {International Communication in Heat and Mass Transfer},
year = {2011},
volume = {38},
number = {1},
month = {December},
issn = {0735-1933},
pages = {1443--1448},
numpages = {5},
keywords = {DSMC Nanoflow Microflow Nanochannel Backward-facing step Subsonic flow},
}

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%0 Journal Article
%T DSMC simulation of subsonic flow through nanochannels and micro/nano backward-facing steps
%A Masoud Darbandi
%A Roohi, Ehsan
%J International Communication in Heat and Mass Transfer
%@ 0735-1933
%D 2011

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