High-resolution Relaxed Scheme for Dam-break Problems

摘要：

Numerical models are an important tool to simulate dam-break flows. A high-resolution relaxed scheme Is proposed for simulating one-dimensional dam-break problems. The scheme is based on combining relaxation approximation with an improved fifth-order weighted essentially nonoscillatory (WENO) reconstruction and third-order strong stability preserving (SSP) RungeKutta scheme. The new method enjoy the main advantage of the relaxation schemes, namely it avoid Riemann solvers, characteristic decomposition and the computation of Jacobians. The numerical experiments demonstrate the efficiency of our method.

关键词： dam-break problems shallow water equations relaxed scheme WENO reconstruction

作者: Yan-mei HU Jian-zhong CHEN

作者单位: College of Science Changan University Xian, Shaanxi 710064, PR China College of Automation Northwestern Polytechnical University Xian, Shaanxi 710072, PR China

会议类型: 国际会议

会议名称: Third International Conference on Information and Computing(第三届信息与计算科学国际会议 ICIC 2010)

会议地点: 无锡

会议语种:英文

页码: 330-333

在线出版日期: 2010-06-04（万方平台首次上网日期，不代表论文的发表时间）