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传导-辐射对沿垂直平面有热泳的瞬时自然对流的影响

S·M·马赫弗兹 Md·A·霍辛

S·M·马赫弗兹, Md·A·霍辛. 传导-辐射对沿垂直平面有热泳的瞬时自然对流的影响[J]. 应用数学和力学, 2012, 33(3): 265-279. doi: 10.3879/j.issn.1000-0887.2012.03.001
引用本文: S·M·马赫弗兹, Md·A·霍辛. 传导-辐射对沿垂直平面有热泳的瞬时自然对流的影响[J]. 应用数学和力学, 2012, 33(3): 265-279. doi: 10.3879/j.issn.1000-0887.2012.03.001
S.Mustafa Mahfooz, Md.Anwar Hossain. Conduction-Radiation Effect on Transient Natural Convection Along a Vertical Flat Surface With Thermophoresis[J]. Applied Mathematics and Mechanics, 2012, 33(3): 265-279. doi: 10.3879/j.issn.1000-0887.2012.03.001
Citation: S.Mustafa Mahfooz, Md.Anwar Hossain. Conduction-Radiation Effect on Transient Natural Convection Along a Vertical Flat Surface With Thermophoresis[J]. Applied Mathematics and Mechanics, 2012, 33(3): 265-279. doi: 10.3879/j.issn.1000-0887.2012.03.001

传导-辐射对沿垂直平面有热泳的瞬时自然对流的影响

doi: 10.3879/j.issn.1000-0887.2012.03.001
详细信息
  • 中图分类号: O357

Conduction-Radiation Effect on Transient Natural Convection Along a Vertical Flat Surface With Thermophoresis

  • 摘要: 研究存在热辐射时,热泳微粒的沉积,对沿垂直平面瞬态自然对流边界层流动的影响,垂直平面浸没在光密灰色流体中.分析中采用Rosseland扩散近似表示辐射热通量项.将控制方程简化为抛物线型的偏微分方程组,然后在整个时间段0≤τ<∞,利用有限差分法数值求解.还得到了小数值时间和大数值时间的渐近解,发现渐近解和数值解吻合很得好.而且,流体,20℃和1个标准大气压下的空气,即Prandtl数Pr为0.7时,用图形给出了不同物理参数,即热辐射参数Rd、表面温度参数θw和热泳参数λ,对瞬时的表面剪切应力τw、表面热传输率qw和组分浓度扩散率(传质率)mw的影响,以及对瞬时的速度、温度和浓度分布曲线的影响.
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出版历程
  • 收稿日期:  2011-06-28
  • 修回日期:  2011-12-01
  • 刊出日期:  2012-03-15

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