[1]胡健,刘立超.二维溃坝的数值模拟研究[J].应用科技,2018,45(05):6-9,15.[doi:10.11991/yykj.201712007]
 HU Jian,LIU Lichao.Numerical simulation of 2D dam-break flow[J].Applied science and technology,2018,45(05):6-9,15.[doi:10.11991/yykj.201712007]
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二维溃坝的数值模拟研究(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第45卷
期数:
2018年05期
页码:
6-9,15
栏目:
船舶与海洋工程
出版日期:
2018-09-15

文章信息/Info

Title:
Numerical simulation of 2D dam-break flow
作者:
胡健 刘立超
哈尔滨工程大学 船舶工程学院, 黑龙江 哈尔滨 150001
Author(s):
HU Jian LIU Lichao
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
二维溃坝障碍物N-S方程有限体积法流体体积法PLIC法IDEAL算法连续表面力模型
Keywords:
2-dimensional dam-breakobstacleN-S equationfinite volume methodvolume of fluidprocedural language for integrity constraintsIDEALcontinuous surface force
分类号:
O359.1
DOI:
10.11991/yykj.201712007
文献标志码:
A
摘要:
为了研究溃坝问题中流体的运动和自由液面的演变,针对简化的块状水坍塌进行了数值模拟。其中,流体控制方程通过有限体积法进行离散,方程的对流项和扩散项分别采用了一阶迎风格式和中心差分格式;对压力与速度耦合的离散方程以IDEAL算法进行求解;以流体体积分数法和PLIC方法进行自由液面捕捉和重构;对两相流问题中的表面张力通过连续表面力(CSF)模型进行转化。基于上,分别对有限空间内的二维溃坝和带障碍物溃坝问题进行了数值模拟,对不同时刻的自由液面进行了捕捉并与实验结果进行了对比,证明了所采用方法的精确性。
Abstract:
In order to solve fluid movement and evolution of the free surface of liquid in the dam-break problem, this paper presents a numerical simulation on the simplified block water collapse. The simulation uses the Finite Volume Method (FVM) to discretize the fluid control equation, applies the first order upwind scheme and center difference scheme to the convective term and diffusive term of the equation respectively; solves the discrete equations of the coupling pressure and speed by IDEAL; captures and reconstructs the free surface of liquid by the Volume of Fluid (VOF) method and the procedural language for integrity constraints (PLIC) method; and transforms the surface tension in the two-phase flow problem by the continuous surface force (CSF) model. On this basis, the two-dimensional dam-breaking problem and the problem of dam-breaking with barrier in a finite space were simulated respectively, and the free surfaces of liquid at several moments were captured and compared with the experiment result, proving the accuracy of the methods mentioned above.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-12-13。
基金项目:国家自然科学基金项目(51678045,51579052,11102048)
作者简介:胡健(1979-),男,副教授,博士;刘立超(1994-),男,硕士研究生
通讯作者:刘立超,E-mail:liulichao2015@126.com
更新日期/Last Update: 2018-09-04