| 磁场力作用下胀缩可渗透壁面管道非稳态流动摄动解 |
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| 引用本文： | 司新辉,郑连存,张欣欣,晁莹.磁场力作用下胀缩可渗透壁面管道非稳态流动摄动解[J].应用数学和力学,2010,31(2):143-149. |
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| 作者姓名： | 司新辉 郑连存 张欣欣 晁莹 |
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| 作者单位： | 北京科技大学 应用科学学院,北京 100083;2.北京科技大学 机械工程学院,北京 100083;3.防化研究院,北京 102205 |
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| 摘 要： | 分析了磁场力作用下胀缩可渗透管道中的不可压缩流动．应用相似变换，控制方程被转换成非线性常微分方程，得到不同的膨胀率和Hartmann数下的奇异摄动解，并对相关的流动特征进行了详细的分析．
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| 关 键 词： | 可渗透管道 横向磁场 胀缩壁面 |
| 收稿时间： | 1900-01-01 |
Perturbation Solution for Unsteady Flow in a Porous Channel With Expanding or Contracting Walls in the Presence of a Transverse Magnetic Field |
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| SI Xin-hui,ZHENG Lian-cun,ZHANG Xin-xin,CHAO Ying.Perturbation Solution for Unsteady Flow in a Porous Channel With Expanding or Contracting Walls in the Presence of a Transverse Magnetic Field[J].Applied Mathematics and Mechanics,2010,31(2):143-149. |
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| Authors: | SI Xin-hui ZHENG Lian-cun ZHANG Xin-xin CHAO Ying |
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| Institution: | Applied Science School, University of Science and Technology Beijing, Beijing 100083, P. R. China; |
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| Abstract: | An incompressible flow in a porous channel with expanding or contacting walls in the presence of a transverse magnetic field was considered.Using similarity transformations,the governing equations were reduced to nonlinear ordinary differential equations.The exact similarity solutions for values of parameters,expansion ratio and Hartmannn number were obtained by singular perturbation method,and the associated behavior was discussed in detail. |
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| Keywords: | porous channel transverse magnetic field expanding or contracting walls |
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