| 用边界元方法数值分析绕平壁上一薄平板的STOKES流动 |
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| 引用本文： | 林长圣.用边界元方法数值分析绕平壁上一薄平板的STOKES流动[J].上海力学,1994,15(1):67-73. |
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| 作者姓名： | 林长圣 |
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| 作者单位： | 内蒙古民族师院 |
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| 摘 要： | 本文用边界元方法研究了绕平壁上一薄平板的Ｓｔｏｋｅｓ流动，数值模拟了薄平板与平壁成不同倾角ξ＝π／２时，平板左右两侧形成大小相等的两个涡旋，其涡心到角点的距离为平板高的０．５４倍；当ζ＝５π／１２时，平板两侧仍然形成两个涡旋，不过平板右侧５π／１２角内的涡旋明显大于板左侧的涡旋，其涡心距角点的距离右侧是平板高的０．６８倍，左侧是０．２９倍；当ξ＝π／３时，平板左侧的涡旋已经消失，右侧π／３角内角然
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| 关 键 词： | 板 边界元法 涡旋流动 |
NUMERICAL ANALYSES OF STOKES FLOW PASSING OVER A FENCE ON A FLAT PLATE WITH BEM |
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| Lin Changsheng.NUMERICAL ANALYSES OF STOKES FLOW PASSING OVER A FENCE ON A FLAT PLATE WITH BEM[J].Chinese Quarterly Mechanics,1994,15(1):67-73. |
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| Authors: | Lin Changsheng |
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| Institution: | Inner Monglia Teacher's College of the Nationalities |
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| Abstract: | In this paper, the various phases of Stokes flows passing over a fence on a flat-iplate inclining different angles with the flat plate are studied by the use of the BF.M (Boundary Fle-ment Method). The velocity fields of numerical simulation show that when the flow passes over the fence which is mounted vertically on the flat plate (0 = p/ 2), a large Vortex is formed within the corner, and the distance between the vortex center and the corner point is about 0.54 times the height of the fence. When the flow passes over the (
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| Keywords: | Boundary Element Method Stokes flow Vortex |
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