Journal of Statistical Physics, Volume (162), No (3), Year (2016-1) , Pages (712-726)

Title : ( Capturing Non-equilibrium Effects of Micro/Nano Scale Gaseous Flow Using a Novel Lattice Boltzmann Model )

Authors: Ali Norouzi , Javad Abolfazli Esfahani ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

In this study, gaseous flow through a micro/nano-channel is investigated via a novel two relaxation time lattice Boltzmann method (TRT-LBM). In this method, the slip velocity at the fluid-solid interface is realized by defining the free relaxation parameter. Furthermore, in order to capture the non-linear phenomena associated with the Knudsen layer, the wall function correction is employed. To this respect, different available wall functions are implemented. The objective of the study is to provide a comparative study on the accuracy, range of applicability and computational efficiency of these wall functions in a wide range of Knudsen numbers. The results of the present study are compared against direct simulation Mont Carlo (DSMC) and information preservation (IP) data. It is found that only a few of the implemented wall functions are capable of predicting the flow behavior with reasonable accuracy, particularly when the Knudsen number lies in the transition flow regime.

Keywords

, Micro/nano, channel; two relaxation time lattice Boltzmann method; Knudsen layer; wall function
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1053087,
author = {Norouzi, Ali and Abolfazli Esfahani, Javad},
title = {Capturing Non-equilibrium Effects of Micro/Nano Scale Gaseous Flow Using a Novel Lattice Boltzmann Model},
journal = {Journal of Statistical Physics},
year = {2016},
volume = {162},
number = {3},
month = {January},
issn = {0022-4715},
pages = {712--726},
numpages = {14},
keywords = {Micro/nano-channel; two relaxation time lattice Boltzmann method; Knudsen layer; wall function},
}

[Download]

%0 Journal Article
%T Capturing Non-equilibrium Effects of Micro/Nano Scale Gaseous Flow Using a Novel Lattice Boltzmann Model
%A Norouzi, Ali
%A Abolfazli Esfahani, Javad
%J Journal of Statistical Physics
%@ 0022-4715
%D 2016

[Download]