| 李翀,何少苓,陆吉康.三维动边界破开算子法不恒定流模拟研究[J].水利学报,1998,29(8):0008-0014 |
| 三维动边界破开算子法不恒定流模拟研究 |
| The numerical simulation of three-dimensional unsteady flow by operator splitting and moving boundary method |
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| DOI： |
| 中文关键词: 大尺度三维模型 破开算子法 动边界 透水介质法 非恒定流模拟 |
| 英文关键词: three-dimension unsteady flow numerical simulation operator splitting method moving boundary treatment |
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| 中文摘要: |
| 本文以静水压强假定下的大尺度三维水流方程为基础，对微分方程采用混合破开算子法求解，并引入了透水介质法处理动水边界、自由水面边界和床底边界，将动边界问题转化为定边界问题求解，对大尺度水体中的恒定与非恒定流动进行了成功的模拟计算。 |
| 英文摘要: |
| A numerical model of three-dimensional simulation for large-scale water unsteady flow has been developed. The model uses the operator splitting method to solve the basic equations for large-scale water. Moving boundary treatment is applied to complex geography and irregular boundary for simulating trace of free surface. To test the model, a series of research on single wave in closed area, wind-induced current, flow in a square lumen and flow in river expansion has been carried out. The measured data for a sea beach zone and results of some other known numerical models are in accord with the numerical results. |
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