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辐射传输的格子Boltzmann模拟

Radiation Transfer Modelling by Lattice Boltzmann Method
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摘要 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.
作者 马宇 董士奎 赫晓东 谈和平
机构地区 哈尔滨工业大学航天学院 哈尔滨工业大学能源学院
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2011年第11期1900-1902,共3页 Journal of Engineering Thermophysics
基金 国家自然科学基金项目(No.50906016) 中国博士后科学基金面上项目资助(No.20100480985)
关键词 格子BOLTZMANN方法 辐射传输 辐射动力学 lattice Boltzmann method radiative transfer radiation hydrodynamics
分类号 TK124 [动力工程及工程热物理—工程热物理]
  • 相关文献

参考文献7

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二级参考文献12

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工程热物理学报
2011年 第11期

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