文章基本信息

标题：Natural Convection With Turbulent Flow In A Rectangular Cavity With Cooled Surfaces.
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作者：Rogerio Fernandes Brito ; Paulo Mohallem Guimarães ; Genesio Jose Menon 等
期刊名称：Mecánica Computacional
印刷版ISSN：2591-3522
出版年度：2007
页码：1651-1666
语种：English
出版社：CIMEC-INTEC-CONICET-UNL
摘要：It is studied in the present work the natural convection of the air (Pr = 0.7), in a rectangular cavity in order to evaluate the heat gain of the domain. It is considered a rectangular cavity whose upper surface is kept at a cold isothermal temperature and the remaining walls at constant convection. To discretize the computational domain, the Galerkin finite element method is applied. The flow is considered to be two-dimensional, turbulent, incompressible, and unsteady. In the turbulence model, it is implemented the large eddy simulation (LES) with two sub-grid scale models: vorticity transfer theory (VTT) and secondorder structure-function (F2). The streamfunction ψ, the temperature θ, and the velocity vectors are obtained. The average Nusselt numbers Num are also calculated on the vertical surfaces as a function of some geometrical and physical parameters.
其他摘要：It is studied in the present work the natural convection of the air (Pr = 0.7), in a rectangular cavity in order to evaluate the heat gain of the domain. It is considered a rectangular cavity whose upper surface is kept at a cold isothermal temperature and the remaining walls at constant convection. To discretize the computational domain, the Galerkin finite element method is applied. The flow is considered to be two-dimensional, turbulent, incompressible, and unsteady. In the turbulence model, it is implemented the large eddy simulation (LES) with two sub-grid scale models: vorticity transfer theory (VTT) and secondorder structure-function (F2). The streamfunction ψ, the temperature θ, and the velocity vectors are obtained. The average Nusselt numbers Num are also calculated on the vertical surfaces as a function of some geometrical and physical parameters.