A Parallel VOF Method for Simulation of Water Impact on Rigid Structure

This article introduces a numerical scheme to simulate water impact on rigid structures, in which the air-water two phase flow is solved using the pressure-based Computational Fluid Dynamics method. This method is implemented using an in-house code, the General Transport Equation Analyser, which is an unstructured grid finite volume solver. The performance of the PC is greatly developed, so as expected the network can provide great computational capability. Based on this point, we developed a data structure system and parallel code. Two simple test cases have been done with the program and reasonable results were obtained. The air cushion has a great effect on the peak pressure of the impact process, while the impulse is almost constant with different air densities. Air density also influences the free surface distribution, which causes different flow characteristics.