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冰盖下冰塞堆积的数值模拟
Numerical simulation for accumulation of ice jam under ice cover
【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。
【Abstract】 Based on transformation of body-fitted coordinate system and finite volume method the k-ε two-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.
【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;
【Key words】 ice jam; ice cover; two-equation model; transformation of body-fitted coordinate system; finite volume method; numerical simulation;
【Key words】 ice jam; ice cover; two-equation model; transformation of body-fitted coordinate system; finite volume method; numerical simulation;
【基金】 国家自然科学基金资助项目(10372028)
- 【文献出处】 水利学报 ,Journal of Hydraulic Engineering , 编辑部邮箱 ,2009年03期
- 【分类号】TV131
- 【被引频次】35
- 【下载频次】292