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Study of the Mixed Convection in a Horizontal Channel Heated from Below

机译:从下面加热的水平沟道中混合对流的研究

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In this work, a contribution to the modeling and numerical simulation of mixed convection in a horizontal channel heated from below is presented. The lattice Boltzmann model with double thermal populations (TLBM) is used with the D2Q9 model for the dynamic field and D2Q5 for the thermal field. A comparison of the results obtained by the lattice Boltzmann model with those of the literature is presented for an area stretching ratio B = H/L = 20, a Reynolds number Re = 10, Rayleigh Ra = 10~4 and Peclet number Pe = 20/3. The streamlines and isotherms are presented for different periods of flow.
机译:在这项工作中,提出了对从下面加热的水平沟道中的混合对流的建模和数值模拟的贡献。 具有双热量群体(TLBM)的格子Boltzmann模型与动态场和D2Q5的D2Q9模型一起使用,用于热场。 用晶格Boltzmann模型与文献中的结果的比较呈现出区域拉伸比B = H / L = 20,Reynolds数Re = 10,瑞利Ra = 10〜4和Peclet数PE = 20 / 3。 为不同的流动时期呈现了流线和等温。

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