基于SPH方法的溃坝流动数值模拟
Numerical simulation of dam-break flows using SPH method
查看参考文献20篇
文摘
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应用光滑粒子流体动力学方法对溃坝问题进行了数值模拟,在现有SPH方法的理论基础上对密度近似方程进行了重新初始化处理,分析了密度重新初始化对溃坝流动问题的影响,并对SPH数值模拟所得到的结果与试验结果以及移动粒子半隐式方法得到的计算结果进行了比较和分析.结果表明,对密度近似方程进行重新初始化保持了流场内的质量守恒,同时整个计算域内的压力分布更加规则,SPH方法数值模拟得到的结果与实验结果和MPS方法得到的结果非常吻合,验证了改进方案及所编程序的可靠性和计算结果的准确性 |
其他语种文摘
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This paper presents the numerical simulations for dam-break problems using smoothed particle hydrodynamics(SPH) and analyzes the difference of simulation results and influence factors. Based on the existing SPH theory, the paper re-initializes the density approximate equation, analyzes the effect of dam-break flow problem by density re-initialization, and then compares the simulated results produced by SPH with the relative experiment results with the calculated results obtained from MPS(moving particle semi-implicit).The simulated results show that re-initializing density approximate equation keeps the mass conservation of flow and makes the pressure distribution more regular in computation fields. The numerical simulation results obtained from SPH are consistent with the relative experiments and the results obtained from MPS.It proves the reliability of the improved scheme with programs and the accuracy of the calculated results |
来源
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水利水运工程学报
,2010(3):65-70 【扩展库】
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关键词
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光滑粒子流体动力学
;
溃坝流动
;
密度修正
;
数值模拟
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地址
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1.
中北大学机电工程学院, 山西, 太原, 030051
2.
中国科学院力学研究所, 北京, 100190
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1009-640X |
学科
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数学;水利工程 |
基金
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国家自然科学基金资助项目
;
山西省人才专项基金项目
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文献收藏号
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CSCD:4019703
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参考文献 共
20
共1页
|
1.
STANSBY P K. The initial stages of dam-break flow.
Fluid Mech,1998,374:407-424
|
被引
1
次
|
|
|
|
2.
HARLOW F H. Numerical calculations of time-dependent viscous incompressible flow of fluid with free surface.
Phys Fluids,1965,8(12):2182-2189
|
被引
131
次
|
|
|
|
3.
HIRT C W. Volume of fluid (VOF) method for the dynamics of free boundaries.
Journal of Computational Physics,1981,39(1):201-225
|
被引
1072
次
|
|
|
|
4.
OSHER S. Fronts propagating with curvature-dependent speed: algorithms based on Hamilton-Jacobi formulations.
Journal of Computational Physics,1988,79(1):12-49
|
被引
949
次
|
|
|
|
5.
KOSHIZUKA S. Moving particle semi-implicit method for fragmentation of incompressible fluid.
Nuclear Science and Engineering,1996,123(3):421-434
|
被引
171
次
|
|
|
|
6.
MONAGHAN J J. An introduction to SPH.
Computer Physics Communications,1988,48(1):89-96
|
被引
81
次
|
|
|
|
7.
MONAGHAN J J. Smoothed particle hydrodynamics.
Annual Review of Astronomy and Astrophysics,1992,30:543-574
|
被引
174
次
|
|
|
|
8.
MONAGHAN J J. Simulating free surface flows with SPH.
Journal of Computational Physics,1994,110:399-406
|
被引
259
次
|
|
|
|
9.
强洪夫. 基于完全变光滑长度SPH方法的高能炸药轰过程数值试验.
含能材料,2009,17(1):27-31
|
被引
9
次
|
|
|
|
10.
毛益明. 高速碰撞问题的SPH方法模拟.
解放军理工大学学报,2003,4(5):84-87
|
被引
8
次
|
|
|
|
11.
刘汉涛. 基于SPH的自由表面流动数值模拟.
水利水运工程学报,2009(1):81-84
|
被引
5
次
|
|
|
|
12.
徐立. 一维激波管问题的SPH模拟.
计算物理,2003,20(2):153-156
|
被引
6
次
|
|
|
|
13.
贝新源. 三维SPH程序及其在斜高速碰撞问题的应用.
计算物理,1997,14(2):155-166
|
被引
21
次
|
|
|
|
14.
SWEGLE J W. Smoothed particle hydrodynamics stability analysis.
Journal of Computational Physics,1995,116:123-134
|
被引
76
次
|
|
|
|
15.
MARTIN J C. An experimental study of the collapse of liquid columns on a rigid horizontal plane.
Mathematical and Physical Sciences,1952,244:312-324
|
被引
2
次
|
|
|
|
16.
WENDLAND H. Piecewise polynomial, position definite and compactly supported radial functions of minimal degree.
Advances in computational Mathematics,1995,4(1):389-396
|
被引
104
次
|
|
|
|
17.
BENZ W. Smooth particle hydrodynamics: a review.
The Numerical Modelling of Non-Linear Stellar Pulsations, Les Arcs: France,1989:269-288
|
被引
1
次
|
|
|
|
18.
MONAGHAN J J. Solitary waves on a cretan beach.
Journal of Waterway, Port, Coastal and Ocean Engineering,1999,125(3):145-154
|
被引
35
次
|
|
|
|
19.
COLAGROSSI A. Numerical simulation of interfacial flows by smoothed particle hydrodynamics.
Journal of Computational Physics,2003,191:448-475
|
被引
116
次
|
|
|
|
20.
席光. 自由表面流动的移动粒子半隐式模拟方法.
西安交通大学学报,2006,40(3):249-252
|
被引
16
次
|
|
|
|
|