| 外流问题的外边界条件设计 |
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| 引用本文： | 李勇,李向群,翟大熙.外流问题的外边界条件设计[J].水动力学研究与进展(A辑),2002,17(6):709-719. |
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| 作者姓名： | 李勇 李向群 翟大熙 |
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| 作者单位： | 北京大学力学与工程科学系,北京,100087 |
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| 摘 要： | 粘性外流计算原则上要求在无限大的外空间进行，巨大的计算区要求巨大的计算机资源。本文利用一般绕流问题在远区流动尺度大，因而雷诺数大的特点对远外处的流动近似地用位势流代替，从而在较小的流体边界条件上建立了“开边界条件”，由此大大缩小了计算工作量。
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| 关 键 词： | N－S方程 开边界条件 势流理论 |
| 文章编号： | 1000-4874(2002)06-0709-11 |
Open boundary condition for viscous flow around a body |
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| LI Yong,LI Xiang qun,ZHAI Da xi.Open boundary condition for viscous flow around a body[J].Journal of Hydrodynamics,2002,17(6):709-719. |
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| Authors: | LI Yong LI Xiang qun ZHAI Da xi |
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| Abstract: | The computation of the viscous flow around a finite body requires the computation domain to be very large and enormous computation resources are needed. In this paper, an open boundary condition based on the potential flow theory was designed by which the real N S equation computation for solving the N S equations domain was considerably shrunk. |
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| Keywords: | N S equation open boundary condition potential flow theory |
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