王军,陈胖胖,江涛,吴其彰.冰盖下冰塞堆积的数值模拟[J].水利学报,2009,40(3): |
冰盖下冰塞堆积的数值模拟 |
Numerical simulation for accumulation of ice jam under ice cover |
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DOI: |
中文关键词: 冰塞 冰盖 两方程模型 贴体坐标变换 有限体积法 数值模拟 |
英文关键词: ice jam ice cover two equation model transformation of body fitted coordinate system finite volume method numerical simulation |
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中文摘要: |
基于贴体坐标转换和有限体积法,用k-ε两方程模型模拟水体的运动,在同位网格上使用动量插值法避免了压力的波动。建立了冰塞面的变形方程,并用C语言编写的程序对冰塞堆积进行了数值模拟计算,对比实验室中冰塞堆积试验的结果,两者的吻合较好。 |
英文摘要: |
Based on transformation of body fitted coordinate system and finite volume method the k-εtwo equation model was used to simulate the flow field under the ice cover. To avoid the pressure oscillation in the non staggered grids, the momentum interpolation was introduced to calculate the interpolation at the interface. An equation describing the deformation of ice jam bottom was developed and the computational program in C language was developed to numerical simulate the accumulation of ice jam. The simulation result is in good agreement with experimental data. |
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