| An Artificial Boundary Condition for the Vortex Movements in Two Dimensions |
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| 引用本文： | Qiyuan Cheng. An Artificial Boundary Condition for the Vortex Movements in Two Dimensions[J]. 高等学校计算数学学报(英文版), 2006, 15(2): 150-163 |
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| 作者姓名： | Qiyuan Cheng |
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| 作者单位： | Qiyuan Cheng Department of Applied Mathematics，Beijing Institute of Technology，Beijing 100081，China. |
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| 摘 要： | 1 Motion of vortices and cloud in cell method The motion of incompressible inviscid ?ow in two dimensions can be described by the equations ?u ?t (u ?) ρ1 ?P = f (1) ?u = 0 , (2) where u = (u, v), ρ, P , and f = (f1, f2) denote ?uid velocity, densit…
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| 关 键 词： | 人工边界条件 边界积分方程 点涡旋方法 二维尺度 |
| 收稿时间： | 2004-07-30 |
| 修稿时间： | 2004-09-15 |
An Artificial Boundary Condition for the Vortex Movements in Two Dimensions |
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| Qiyuan Cheng. An Artificial Boundary Condition for the Vortex Movements in Two Dimensions[J]. Numerical Mathematics A Journal of Chinese Universities English Series, 2006, 15(2): 150-163 |
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| Authors: | Qiyuan Cheng |
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| Abstract: | An approximate artificial boundary condition based on a boundary integral equa- tion is designed for the vortex movements. Point vortex and cloud in cell methods are used in numerical simulation of vortex motions. The numerical experiments show that the ap- proximate artificial boundary condition is useful and su?ciently accurate in hydrodynamics. |
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| Keywords: | Artificial boundary condition boundary integral equation point vortex method cloud in cell method. |
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