Burnett simulation of gas flow and heat transfer in micro Poiseuille flow

被引：30
作者：
Bao, Fubing [1 ,2 ]
Lin, Jianzhong [1 ,2 ]
机构：
[1] Zhejiang Univ, Dept Mech, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Peoples R China
[2] China Jiliang Univ, Hangzhou 310018, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2008年 / 51卷 / 15-16期
基金：
中国国家自然科学基金;
关键词：
Burnett equations; heat transfer; slip boundary condition; Poiseuille flow; thermal creep effect;
D O I：
10.1016/j.ijheatmasstransfer.2007.12.009
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The Burnett equations with slip boundary conditions are used to simulate the compressible gas flow and heat transfer in micro Poiseuille flow in the slip and transition flow regime. A relaxation method on Burnett terms is proposed in the present study and the thermal creep effect is considered. Convergent results at Knudsen number up to 0.4 are achieved and the results agree very well with experimental data. It is found that with the increase of Knudsen number, the Poiseuille number decreases while Nusselt number increases. The local Poiseuille number decreases along the whole channel while the local Nusselt number decreases rapidly first and then increases slowly afterwards. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4139 / 4144
页数：6
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