摘要
以紊流运动方程——雷诺时均方程为控制方程，基于流体体积法（ＶＯＦ）对浪溅区结构物所受的波浪冲击作用进行了数模研究．入射波为椭圆余弦波，采用三阶迎风差分格式来离散控制方程的对流项，加入了ｋ－ε紊流模型及在近壁区应用壁函数．通过对不同波浪参数、结构物尺度、结构物与静水面的距离等情形的数值计算成果的比较分析，得到了非线性波浪对结构物底面的冲击压力分布特征。
The present study is to investigate numerically the impact pressure on structures in the splash zone based on the volume of fluid method (VOF). The govern equations are Reynolds time averaged equations and two equations k ε model. The third order upwind difference scheme is applied to convection term to reduce the effect of numerical viscosity. Parametric studies have been carried out for different wave parameters, structure geometry and the distance between the underside of structure and still water level. The impact pressure distribution of nonlinear wave on the structure is obtained, and the affecting factors on peak pressure are discussed.
出处
《大连理工大学学报》
CAS
CSCD
北大核心
1999年第4期562-566,共5页
Journal of Dalian University of Technology
基金
国家自然科学基金
关键词
数值模拟
波浪
结构物
冲击作用
非线性波浪
numerical simulation/wave shock
the third order upwind difference
non linear wave
VOF
