| 液舱横荡非结构网格高阶格式数值模拟 |
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| 引用本文： | 明平剑,段文洋.液舱横荡非结构网格高阶格式数值模拟[J].计算物理,2011,28(4):507-514. |
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| 作者姓名： | 明平剑 段文洋 |
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| 作者单位： | 1. 哈尔滨工程大学动力与能源工程学院, 黑龙江 哈尔滨 150001;2. 哈尔滨工程大学船舶工程学院, 黑龙江 哈尔滨 150001 |
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| 基金项目： | 中国博士后科学基金(20100471016); 国家自然科学基金(NSFC50779008)资助项目 |
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| 摘 要： | 提出一种液舱横荡数值模拟的方法,将气液两相交界面视为物理间断,通过高阶精度离散格式捕捉间断.根据NVD(Normalized Variable Diagram)实现非结构化网格上高精度离散格式,建立固定网格上自由表面运动模拟方法.在开发的非结构网格有限体积法求解器GTEA(General Transport Equation Analyzer)基础上,实现上述方法.首先对经典的溃坝过程进行模拟,并与文献结果对比验证方法和程序的可信度.对二维矩形液舱在不同激振频率时的横荡进行数值计算,并与实验以及商业软件CFX计算结果进行比较.结果表明方法和软件可以模拟自由面的翻卷、破碎运动现象,对距自由面较深点处流体载荷的计算结果与实验值符合较好,与商业软件CFX相比,在相同计算网格下,算法可以更好的计算次峰值,验证方法正确可行.
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| 关 键 词： | 晃荡 数值模拟 非结构网格 VOF |
| 收稿时间： | 2010-05-26 |
| 修稿时间： | 2010-05-26 |
Numerical Simulation of a Sway Tank with Unstructured Grid High Order Scheme |
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| MING Pingjian,DUAN Wenyang.Numerical Simulation of a Sway Tank with Unstructured Grid High Order Scheme[J].Chinese Journal of Computational Physics,2011,28(4):507-514. |
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| Authors: | MING Pingjian DUAN Wenyang |
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| Institution: | 1. School of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;2. School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | A method for simulation of a sway tank is presented,in which phase interface is treated as a physical discontinuity.The discontinuity is captured by a well-designed high order scheme.A numerical method for free surface flow on a fixed grid is established.This method is implemented in an in house code GTEA(General Transport Equation Analyzer) which is an unstructured grids finite volume solver.A classical dam break case and a two-dimensional rectangular sway tank at different excitation frequency are used to... |
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| Keywords: | sloshing numerical simulation unstructured grid volume of fluid |
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