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多孔介质复合方腔双扩散混合对流LBM模拟

陆威 王婷婷 徐洪涛 陈建 杨茉

陆威, 王婷婷, 徐洪涛, 陈建, 杨茉. 多孔介质复合方腔双扩散混合对流LBM模拟[J]. 应用数学和力学, 2017, 38(7): 780-793. doi: 10.21656/1000-0887.370175
引用本文: 陆威, 王婷婷, 徐洪涛, 陈建, 杨茉. 多孔介质复合方腔双扩散混合对流LBM模拟[J]. 应用数学和力学, 2017, 38(7): 780-793. doi: 10.21656/1000-0887.370175
LU Wei, WANG Ting-ting, XU Hong-tao, CHEN Jian, YANG Mo. LBM Simulation of Double Diffusive Mixed Convection in a Porous Medium Composite Cavity[J]. Applied Mathematics and Mechanics, 2017, 38(7): 780-793. doi: 10.21656/1000-0887.370175
Citation: LU Wei, WANG Ting-ting, XU Hong-tao, CHEN Jian, YANG Mo. LBM Simulation of Double Diffusive Mixed Convection in a Porous Medium Composite Cavity[J]. Applied Mathematics and Mechanics, 2017, 38(7): 780-793. doi: 10.21656/1000-0887.370175

多孔介质复合方腔双扩散混合对流LBM模拟

doi: 10.21656/1000-0887.370175
基金项目: 国家自然科学基金(51406121)
详细信息
    作者简介:

    陆威(1977—),女,讲师(E-mail: luweinora@163.com);徐洪涛(1976—),男,副教授(通讯作者. E-mail: htxu@usst.edu.cn).

  • 中图分类号: TK124

LBM Simulation of Double Diffusive Mixed Convection in a Porous Medium Composite Cavity

Funds: The National Natural Science Foundation of China(51406121)
  • 摘要: 基于CLBGK模型,通过引入浓度分布函数,利用格子Boltzmann方法对顶盖驱动的复合方腔内的双扩散混合对流现象进行了研究,复合方腔由多孔介质区域和纯流体空间组成.在Richardson(理查德森)数Ri=1.0,Lewis(路易斯)数Le=2.0,Grashof(格拉晓夫)数Gr=104和Prandtl(普朗特)数Pr=0.7时,分析了孔隙尺度下多孔介质层不同位置及浮升力比(-5.0≤N≤5.0)对复合方腔双扩散混合对流的影响.给出了浮升力比N及多孔介质层位置影响下的高温高浓度壁面上的平均Nusselt(努赛尔)数Nuav、平均Sherwood(舍伍德)数Shav及当地Nusselt数Nulocal和Sherwood数Shlocal的分布规律.
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出版历程
  • 收稿日期:  2016-06-03
  • 修回日期:  2016-12-05
  • 刊出日期:  2017-07-15

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