无质量误差的具有复杂地形的浅水问题

被引：7

作者：

柏禄海

金生

机构：

[1] 大连理工大学海岸和近海工程国家重点实验室

来源：

水动力学研究与进展A辑 | 2008年 / 05期

关键词：

干湿界面; 无质量误差; 复杂地形; 非结构化网格;

D O I：

10.16076/j.cnki.cjhd.2008.05.011

中图分类号：

TV131.2 [水动力学];

学科分类号：

摘要：

本文提出了一种处理带有干湿界面的非恒定浅水流动的无质量误差方法。以Roe格式的近似Riemann解为基础,采用非结构化网格的有限体积法,对底坡源项采用特征分解保证和谐性,摩擦力源项采用半隐式格式增加格式的稳定性。采用适当的干湿界面处理技术以满足静水问题,同时对有干湿界面的复杂地形的非恒定流动达到无质量误差。应用的算例表明对于处理洪水演进及溃坝问题,本文的方法是行之有效的。

引用

页码：515 / 521

页数：7

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