摘要
为探索能够精确模拟大变形自由表面流(如波浪破碎)问题的数值模拟方法,采用CIP(constrained interpolation profile Scheme)法建立了自由表面流数值计算模型;并以干床面、湿床面上的溃坝溢流为例,研究了CIP法在模拟具有大自由界面变形的气-液二相流问题中的应用。研究结果表明,通过采用CIP法对Navier-Stokes流体运动方程中对流项进行离散求解;对溃坝溢流问题的自由表面形态及压力分布均能给出良好的模拟结果。证明CIP法在对波浪破碎等大自由表面问题的模拟中具有较好的应用前景。
Aim at finding a numerical simulation method to accurately simulate the free surface flow problems（ such as wave breaking）,a numerical model with CIP（ Constrained Interpolation Profile Scheme） method was established.The model is firstly used to simulate the dam break flows over a dry bed,and then applied to the dam break flow problems with shallow and deep ambient water depth.Comparison with Lobovsk ＇experimental results shows that b this model gives good representation for the propagation of dam break flows,including water front velocities and pressure distribution,which indicates that the CIP method may have a good application prospect in simulating the large deformation free surface flow.
出处
《科学技术与工程》
北大核心
2016年第10期63-70,共8页
Science Technology and Engineering
关键词
CIP法
溃坝溢流
数值模拟
CIP method
dam break flow
numerical simulation
