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浙江大学学报(工学版)
土木工程、交通工程     
基于有限点法的自由面流动的数值模拟
卢雨1,胡安康1,2,刘亚冲1
1.哈尔滨工程大学 船舶工程学院,黑龙江 哈尔滨 150001;2.中集船舶海洋工程设计研究院,上海 201206
Numerical simulation of free surface flow based on finite point method
LU Yu1,  HU An kang1,2, LIU Ya chong1
1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China; 2. CIMC Ocean Engineering Design and Research Institute Limited Company, Shanghai 201206, China
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摘要:
为了准确模拟复杂变形的自由面流动,应用空间粒子法中的有限点法(FPM),即利用移动最小二乘(MLS)法近似流场函数,采用投影法分步求解压力泊松方程,迭代更新流场各粒子的物理信息,数值模拟大变形下的自由面流动问题.数值模拟结果表明:采用有限点法可以较准确地模拟出自由面流动过程中的复杂变形,如迸溅、翻滚、破碎以及入水等现象,与试验结果吻合较好.验证了采用的有限点法对于处理大变形自由面流动问题具有较高的可靠性及较好的灵活性.
Abstract:

The finite point method (FPM) was employed to accurately simulate the free surface flow with complicated deformation. The projection method was adopted to fulfill the incompressibility of flow. The moving least squares (MLS) approach was introduced for solving the pressure Poisson equation and updating physics information of particles in flow filed over time steps. Then the flow with a large deformation of free surface was simulated. The numerical results show that the finite point method can accurately provide more detailed information and features of complicated free surface flow, such as the phenomena of water jump, rolled, merged and broken waves. The numerical results agreed well with the experimental data. The presented finite point method was proved to have excellent flexibility and reliability in dealing with complex free surface flows.

出版日期: 2016-03-31
:  U 661  
基金资助:

国家自然科学基金资助项目(51379040,51409063).

通讯作者: 胡安康,女,教授.     E-mail: ankang.hu@cimc.com
作者简介: 卢雨(1988-),男,博士生,从事流体力学的研究. ORCID:0000 0001 7859 2876. E-mail:luyu90627@126.com
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卢雨,胡安康,刘亚冲. 基于有限点法的自由面流动的数值模拟[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2016.01.009.

LU Yu, HU An kang, LIU Ya chong. Numerical simulation of free surface flow based on finite point method. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2016.01.009.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2016.01.009        http://www.zjujournals.com/eng/CN/Y2016/V50/I1/55

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