A 3-D numerical study of solitary wave interaction with vertical cylinders using a parallelised particle-in-cell solver

IF 3.4 3区工程技术 Q1 MECHANICS 水动力学研究与进展:英文版 Pub Date : 2017-10-01 DOI:10.1016/S1001-6058(16)60790-4

Qiang Chen , Jun Zang , David M. Kelly , Aggelos S. Dimakopoulos

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引用次数: 9

Abstract

This paper aims to provide a better understanding of the interaction between solitary waves and vertical circular cylinders. This is achieved via process based numerical modelling using the parallel particle-in-cell based incompressible flow solver PICIN. The numerical model solves the Navier-Stokes equations for free-surface flows and incorporates a Cartesian cut cell method for fluid-structure interaction. Solitary waves are generated using a piston-type wave paddle. The PICIN model is first validated using a test case that involves solitary wave scattering by a single vertical cylinder. Comparisons between the present results and experimental data show good agreement for the free surface elevations around the cylinder and the horizontal wave force on the cylinder. The model is then employed to investigate solitary wave interaction with a group of eleven vertical cylinders. The wave run-up and wave forces on the cylinders are discussed.

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用平行粒子池求解器对孤立波与垂直圆柱体相互作用的三维数值研究

本文的目的是为了更好地理解孤立波与垂直圆柱之间的相互作用。这是通过基于过程的数值模拟实现的，该数值模拟使用了基于并行颗粒的不可压缩流动求解器PICIN。该数值模型求解了自由表面流动的Navier-Stokes方程，并结合了流固耦合的笛卡尔切割单元法。孤立波是用活塞式桨叶产生的。PICIN模型首先使用一个测试案例进行验证，该测试案例涉及单个垂直圆柱体的孤立波散射。本文的计算结果与实验数据的比较表明，圆柱周围的自由表面高度和圆柱上的水平波浪力符合得很好。然后利用该模型研究了孤立波与11个垂直圆柱体的相互作用。讨论了波浪的爬升和作用在圆柱上的波浪力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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