摘要
本文用完整二维Navier-Stokes方程和VOF方法,研究孤立波通过淹没水下孤立直立方柱水域时的波形变化和粘性流场运动。本文对孤立波通过水下孤立直方柱的情形进行了实例计算,给出了波形随时间的演化图,可以看到反射波、前传波和跟随的振荡型小波列的生成及涡流场的运动演化,并与势流计算结果进行了比较。
In order to simulate numerically the evolution of a barotropic solitary wave passing over a submerged isolated quadrate cylinder, the full 2-D Navier-Stokes equations and VOF technique are introduced to describe the propagation process of the transmitted wave and reflected wave, as well as the generation of tiny dispersive oscillating wave trains following them. The fluid viscosity is considered and vortex field simulated successfully in this paper. Some differences are shown by comparing the present numerical results with the ones based on an analytical model derived in the framework of a potential shallow water theory presented by Seabra-Santos, Penouard and Temperville
出处
《上海力学》
CSCD
1998年第4期297-304,共8页
Chinese Quarterly Mechanics
基金
上海市教委发展基金(项目编号:96AJ01)
