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辐射动力学理论是描述辐射传输是重要手段,基于此,本文建立了辐射能和辐射动量守恒方程,并基于Chapman-Enskog多尺度展开方法实现了从辐射传输Boltzmann方程到宏观方程的推导,进而建立了适于一维辐射传输的2分量格子Boltzmann模型。数值结果与精确解吻合较好,表明本文提出的LBM方法具有很好的准确性和稳定性,为LBM方法在辐射传热问题的应用奠定了理论基础。

Radiation hydrodynamics is an important mean describing radiative transfer, based on which, the macroscopic conservation equations of radiation energy and radiation momentum are derived. Based on the Chapman-Enskog method, the 2-bit lattice Boltzmann model for one dimension radiative transfer is proposed. The numerical simulation results agree well with exact solution, showing that the lattice Boltzmann method developed in this article has good accuracy and stability, and laying the foundation for using of LBM on radiation heat transfer.

参考文献

[1] Yimin Xuan;Qiang Li;Meng Ye .Investigations of convective heat transfer in ferrofluid microflows using lattice-Boltzmann approach[J].International Journal of Thermal Sciences,2007(2):105-111.
[2] 董志强,李维仲.不同精度格式的格子Boltzmann热模型的传热分析[J].计算物理,2009(01):94-100.
[3] Subhash C. Mishra;Anjaneyulu Lankadasu;Kamen N. Beronov .Application of the lattice Boltzmann method for solving the energy equation of a 2-D transient conduction-radiation problem[J].International Journal of Heat and Mass Transfer,2005(17):3648-3659.
[4] Mishra SC;Lankadasu A .Transient conduction-radiation heat transfer in participating media using the lattice Boltzmann method and the discrete transfer method[J].Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology,2005(9):935-954.
[5] Bittagopal Mondal;Subhash C. Mishra .Lattice Boltzmann method applied to the solution of the energy equations of the transient conduction and radiation problems on non-uniform lattices[J].International Journal of Heat and Mass Transfer,2008(1/2):68-82.
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