Natural convection in a wavy enclosure filled with porous media

Min Zeng, Gang Wang, Gongnan Xie, Qiuyang Chen, Qiuwang Wang

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

摘要

We study heat transfer and fluid flow in a complex enclosure filled with porous media, with SIMPLEC (Semi-Implicit Method for Pressure Linked Equations Consistent) algorithm in curvilinear coordinates. The upper and lower walls of the enclosure are horizontal and adiabatic. The vertical wall forms cosine curve and is kept at a constant temperature. Governing equations are discretized with a finite-volume method on body-fitted collocated grids. Brinkman-extended-Darcy model and local thermal non-equilibrium model are used to solve momentum and energy equations. Effects of parameters, such as Rayleigh numbers, Darcy numbers and porosity, on heat transfer and fluid flow are studied. It is shown that Rayleigh numbers and Darcy numbers have significant effect while porosity is negligible. There exists an optimal aspect ratio to make the heat transfer rate maximum.

源语言英语
页(从-至)445-449
页数5
期刊Jisuan Wuli/Chinese Journal of Computational Physics
25
4
出版状态已出版 - 7月 2008
已对外发布

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