摘要
本文推导了间断分解公式,建立了Godunov型格式,研究了二维溃坝波的传播、反射和绕射。计算结果符合物理实际,令人满意。方法是有效的,可以提供水工部门作为设计和防护的依据。
The propagation, reflection and diffraction of 2-dimensional dam break wave are studied by solving the shallow water equations with a Godunov's scheme which is derived in detail. The compact expressions of Hc,d and Vo,d2, the contact discontinuity of water surface elevation and velocity at the boundaries of general cells are also given to complete the calculation. The numerical results are quite satisfactory compared with the measurements and the 1-dimensional analysis, so they are useful for the dam design and protection.
出处
《力学学报》
EI
CSCD
北大核心
1992年第4期493-499,共7页
Chinese Journal of Theoretical and Applied Mechanics
关键词
浅水方程
二维溃坝波
反射和绕射
shallow water equation, 2-d dam break wave, reflection and diffractioa
