摘要
本文从完整的Ｎ—Ｓ方程出发，采用修正的Ｋ—ε模型封闭雷诺方程，作为紊流控制方程，并采用ＶＯＦ方法跟踪波动自由表面，依据所建立的数学模型与计算程序，对孤立波在岸滩上的传播与破碎的复杂过程进行了数模，并与实验结果进行了对比，二者吻合良好。
To solve the problems of irregular boundaries and free surfaces in predicting the motion of wave,a modified K-εturbulence model is derived,and the governing equations of turbulent flow over irregular boundary are developed by analyzing the solid-liquid two-phase theoretical flow model.And furthermore a partial- cell parameter is introduced to treat irregular boundary.To track. free surfaces, a simple but powerful method is described that is based on the concept of a fractional volume of fluid (VOF).The wave running up a beach has been simulated.The calculated run-up height is consistent with that of the experiment.
出处
《华北水利水电学院学报》
1996年第1期13-20,共8页
North China Institute of Water Conservancy and Hydroelectric Power
基金
大连理工大学海岸和近海工程国家重点实验室基金
