| 贴体网格的生成与平面二维泥沙运动方程在贴体坐标区域中的变换 |
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| 引用本文： | 谢艳芳,王 颖,陈 刚. 贴体网格的生成与平面二维泥沙运动方程在贴体坐标区域中的变换[J]. 西北农林科技大学学报(自然科学版), 2005, 33(3): 125-128,132 |
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| 作者姓名： | 谢艳芳 王 颖 陈 刚 |
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| 作者单位： | 西安理工大学,水利水电学院,陕西,西安,710048 |
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| 摘 要： | 针对用平面二维泥沙模型求解不规则区域泥沙运动规律时常遇到的边界复杂问题,引入了贴体坐标的基本原理,推导并离散了贴体网格的生成方程,将泥沙运动方程及边界条件从物理区域向计算区域进行了一一对应转换,最后给出了平面二维泥沙运动方程在贴体坐标下的变换形式。
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| 关 键 词： | 贴体坐标 贴体网格 泥沙运动方程 |
| 文章编号： | 1671-9387(2005)03-0125-04 |
| 收稿时间： | 2004-05-21 |
Generation of body-fitted grids and transformation of the 2-D sediment movement equation in body-fitted coordinate regions |
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| XIE Yan-fang,WANG Ying,CHENG Gang,ZHANG Shuang-hu. Generation of body-fitted grids and transformation of the 2-D sediment movement equation in body-fitted coordinate regions[J]. Journal of Northwest A&F University（Natural Science Edition）, 2005, 33(3): 125-128,132 |
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| Authors: | XIE Yan-fang WANG Ying CHENG Gang ZHANG Shuang-hu |
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| Affiliation: | (Water Resources and Hydro-electric Institute,Xi’an University of Technology,Xi’an,Shaanxi 710048,China) |
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| Abstract: | In view of complex boundary of irregular region in solving movement rules of sediment,the body-fitted coordinate (BFC) was introduced.BFC transformation equation is derived by using the transformation equation.The planar 2-D sediment movement equation and the boundary conditions are transformed from physical domain to computational domain.And the transformation of the planar 2-D sediment movement equation in BFC is given. |
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| Keywords: | body-fitted coordinate body-fitted grid sediment movement equation |
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