A 3D incompressible thermal lattice Boltzmann model and its application to simulate natural convection in a cubic cavity
A 3D incompressible thermal lattice Boltzmann model and its application to simulate natural convection in a cubic cavity
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DOI：
10.1016/j.jcp.2003.08.008
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发表时间：
2004
影响因子：
4.1
通讯作者：
Yan Peng;C. Shu;Y. Chew
中科院分区：
文献类型：
--
作者：
Yan Peng;C. Shu;Y. Chew
本文提出了一种三维不可压热格子Boltzmann模型来求解三维不可压热流问题。两种不同的粒子速度模型D3 Q15和D3 Q19被纳入我们的热模型。结果表明，该热模型简单易行。应用该方法模拟了立方体封闭空间内空气的三维自然对流换热，并对其进行了验证。与Navier-Stokes方程的计算结果进行了比较，两者吻合较好。
A 3D incompressible thermal lattice Boltzmann model is proposed in this paper to solve 3D incompressible thermal flow problems. Two different particle velocity models of D3Q15 and D3Q19 are incorporated in our thermal model. It is indicated that the present thermal model is simple and easy for implementation. It is validated by its application to simulate the 3D natural convection of air in a cubical enclosure, which is heated differentially at two vertical side walls. Good agreement was obtained between the present results and those from a Navier–Stokes solver.