黏性波浪场与半潜平台相互作用的数值模拟

以N-S方程为控制方程,采用动量源方法,结合追踪自由面的VOF方法,基于FLUENT求解器,建立了同时具有造波和消波功能的数值波浪水槽.利用该数值水槽对黏性波浪场与半潜平台的相互作用问题进行了数值模拟,获得了黏性波浪场作用下半潜平台水动力载荷及其立柱表面波浪爬高的时历特性.研究表明,利用所建立的数值波浪水槽来研究黏性波浪场与深海平台非线性相互作用是一条有效的途径.

Numerical simulation of interaction of viscous wave fields with a semi-submersible platform

Based on the N-S equation, which is solved by use of the FLUENT solver and the momentum source method, and the VOF method for tracking the free surface, a numerical wave flume which can both generate and absorb waves is obtained. The interaction of viscous wave fields with the semi-submersible platform is numerically simulated by use of the numerical wave flume. The hydrodynamic characteristics of the wave loads and the wave running-up on the column surface of the platform are obtained. Results show that the presented numerical wave flume can numerically simulate the interaction of viscous wave fields with deep-sea platforms.