三维溃坝波绕方柱剧烈流动的数值模拟-上海交通大学.PDFVIP

DOI ：10.3969/j.issn1000-4874.2013.04.006 三维溃坝波绕方柱剧烈流动的数值模拟* 1 1 1,2 曹洪建 , 万德成 , 杨驰 （1. 上海交通大学船舶海洋与建筑工程学院, 海洋工程国家重点实验室, 上海 200240, Email: hongjianc@163.com; 2. Center for Computational Fluid Dynamics, George Mason University, Fairfax, Virginia, USA ） 摘 要：该文采用自主开发的非定常黏性流动问题求解器 naoe-FOAM-SJTU ，对三维溃坝波和直立方柱相互作用问 题进行数值模拟。求解器 naoe-FOAM-SJTU 是基于开源代码 OpenFOAM 的数据结构、工具箱和基本流场求解器，专门 面向研究船舶与海洋工程水动力学问题而开发的数值计算程序，它可以模拟三维波与物体相互作用等复杂问题，能够较 精确的模拟波浪破碎、翻卷等复杂自由面演化过程。计算结果给出了三维溃坝波的演化过程，包括溃坝波和直立方柱相 互作用过程中的波面爬高、破碎及翻卷现象，给出了方柱附近的涡流场；并分析了流体黏性效应的影响，得到了直立方 柱受溃坝波拍击作用的水动力时间演化过程图，计算结果与实验数据吻合较好。计算结果表明，采用 naoe-FOAM-SJTU 求解器可以有效地模拟有复杂波面演化的剧烈流动问题，较准确地预报波浪在结构物上的爬高和拍击力。 关 键 词：溃坝波；剧烈流动；黏性流动；naoe-FOAM-SJTU 求解器；OpenFOAM 中图分类号：U661.1 文献标识码：A Numerical simulation of violent flow of 3-D dam-breaking wave around square cylinder 1 1 1,2 CAO Hong-jian , WAN De-cheng , YANG Chi (1. State Key laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Center for Computational Fluid Dynamics, George Mason University, Fairfax, Virginia, USA) Abstract: Numerical simulation of 3D dam-breaking wave flows around a square cylinder by our in-house solver naoe-FOAM-SJTU is presented in this paper. The solver naoe-FOAM-SJTU is an unsteady viscous flow code for dealing with hydrodynamic problems in ship and ocean engineering, and developed based on the open source toolbox OpenFOAM. It can be applied to simulate the complex wave-structures interaction and the complex fre