| 考虑河岸变形的三维水沙数值模拟研究 | |
| 假冬冬 ; 邵学军 ; 王虹 ; 周刚 ; JIA Dong-dong ; SHAO Xue-jun ; WANG Hong ; ZHOU Gang | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 河岸崩塌 三维模型 水沙数值模拟 河床变形 bank erosion 3D mathematical model flow-sediment numerical simulation fluvial processes TV147.3 |
| 其他题名 | 3D mathematical modeling for fluvial processes considering bank erosion |
| 中文摘要 | 将粘性河岸崩塌模拟力学方法与水沙模型相结合,构建了考虑河岸变形的三维数值模型。基于非正交网格,采用局部网格可动技术处理由河岸崩塌引起的河道摆动过程。模型采用有限体积法对方程进行离散,采用与动量插值技术相结合的SIMPLEC算法进行模型求解。通过弯道发展过程的计算表明,模型能够有效地模拟出河道的复杂演变过程。; A 3D mathematical modeling considering bank erosion is developed by using both a cohesive bank erosion model and a 3D flow-sediment transport model.The locally-adaptive grid system based on the non-orthogonal grid is proposed to simulate the lateral migration in the channel due to the bank erosion.The governing equations for flow-sediment transport are solved with the finite volume method and the SIMPLEC algorithm with the momentum interpolation.The computed case of the self-forming meander evolution demonstrates that this model is able to predict the complex fluvial processes in alluvial rivers with bank erosion.; 国家自然科学基金资助项目(50879042;50221903); 国家科技支撑计划资助项目(2006BAB05B03;2006BAB05B02)~~ |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/60430]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 假冬冬,邵学军,王虹,等. 考虑河岸变形的三维水沙数值模拟研究[J],2010, 2010. |
| APA | 假冬冬.,邵学军.,王虹.,周刚.,JIA Dong-dong.,...&ZHOU Gang.(2010).考虑河岸变形的三维水沙数值模拟研究.. |
| MLA | 假冬冬,et al."考虑河岸变形的三维水沙数值模拟研究".(2010). |
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