| AUSM格式在二维浅水方程求解中的应用 |
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| 引用本文： | 顾峰峰,倪汉根,戚定满,郁微微.AUSM格式在二维浅水方程求解中的应用[J].水科学进展,2008,19(5):624-629. |
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| 作者姓名： | 顾峰峰 倪汉根 戚定满 郁微微 |
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| 作者单位： | 上海河口海岸科学研究中心, 上海 201201; |
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| 摘 要： | 引入空气动力学中发展起来的AUSM格式,在三角形网格上采用有限体积法,对二维浅水控制方程进行数值求解;引入过程中,对浅水问题中的源项及露滩问题等采用了相应的特殊处理。通过对二维计算常用的溃坝算例及扎龙湿地实际算例的计算结果分析可知:二维浅水问题中引入该计算格式后,计算结果较好且保持了原格式的优良特性,同时也验证了该格式在二维浅水方程中应用的可行性及可靠性。
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| 关 键 词： | AUSM格式 有限体积法 非结构网格 二维浅水方程 |
| 收稿时间： | 2007-07-30 |
AUSM scheme for 2D shallow-water equations |
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| GU Feng-feng,NI Han-gen,QI Ding-man,YU Wei-wei.AUSM scheme for 2D shallow-water equations[J].Advances in Water Science,2008,19(5):624-629. |
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| Authors: | GU Feng-feng NI Han-gen QI Ding-man YU Wei-wei |
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| Institution: | Estuary and Coastal Scientific Research Institute of the Ministry of Communication, Shanghai 201201, China;2.School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China;3.Dept. of Hydraulic Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The advection upstream splitting method (AUSM) is used to discretize the 2D shallow water equations based on the finite volume method and unstructured triangular grids.The source terms and drying wetting moving boundary in the shallow water equations are specifically handled.Compared with the theoretical and classical cases for 2D dam break and Zhalong wet land,it shows that the results are in good agreement with the field data and the advantage of original scheme is also remained.The application of AUSM scheme is shown its stability and credibility. |
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