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波浪对透空式结构物冲击作用的光滑粒子流体动力学数值模拟

, PP. 163-177

Keywords: 光滑粒子流体动力学,波浪冲击,数值水槽

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Abstract:

基于光滑粒子流体动力学(SPH)方法的二维数值波浪水槽模拟了规则波对透空式结构物的冲击作用。通过黎曼解和CSPM相结合的方法对连续方程和动量方程进行了修正。对造波边界采用虚粒子法模拟。提出了一种耦合计算方法来消除造波边界附近的压力波动现象,在结构物边界处设置了适合的冲击边界条件。应用修正的SPH模型模拟了规则波对浪溅区结构物的冲击作用,给出了结构物附近流场和压力场的变化特征,并应用物理模型试验结果对数值模型进行了验证。

References

[1]  任冰, 王永学.非线性波浪对结构物的冲击作用[J]. 大连理工大学学报, 1999, 39(4): 562-566.
[2]  IWANOWSKI B, GRIGORIAN H, SCHERF I. Subsidence of the ekofisk platforms: wave in deck impact study[G]. Various Wave Models and Computational Methods. OMAE, 2002: 95-102.
[3]  KAPLAN P, MURRAY J J, YU W C. Theoretical analysis of wave impact forces on platform deck structures[G].OMAE,1995:189-198.
[4]  KLEEFSMAN K M, FEKKEN G, VELDMAN E P, et al. An improved volume-of-fluid method for wave impact problems[G].ISOPE,2004:334-341.
[5]  BORDTKORB B. Prediction of wave-in-deck forces on fixed jacket-type structures based on CFD calculations[G]. OMAE,2008: 713-721.
[6]  MONAGHAN J J. Simulating free surface flow with SPH [J]. Journal of Computational Physics, 1994, 110(2): 399-406.
[7]  EDMOND Y M, SHAO S D. Simulation of near shore solitary wave mechanics by an incompressible SPH method[J]. App Oc Res, 2002, 24(5): 275-286.
[8]  MONAGHAN J J, KOS A. Solitary waves on a cretan beach [J].Journal of Waterway, Port, Coastal and Ocean Engineering, 1999, 125(3): 145-154.
[9]  IGLESIAS A , DELORMEA L. Liquid moment amplitude assessment in sloshing type problems with smooth particle hydrodynamics[J].Ocean Engineerng, 2006, 33(11-12): 1462-1484.
[10]  RUDMAN M, PRAKASH M, CLEARY P.SPH modeling of liquid sloshing in an LNG tank[C].ISOPE, 2009, 213-220.
[11]  PARSHIKOV A N, MEDIN S A, LOUKASENKO I I.Improvements in SPH method by means of interparticle contact algorithm and analysis of perforation tests at moderate projectile velocities[J].Int J Impact Eng , 2000, 24(8): 779-796.
[12]  MONAGHAN J J.Smoothed particle hydrodynamics[J].Annual Review of Astronomy and Astrophysics, 1992, 30: 543-574.
[13]  GINGOLD R A, MONAGHAN J J.Kernel estimates as a basis for general particle methods in hydrodynamics[J].Journal of Computational Physics, 1982, 46: 429-453.
[14]  DALRYMPLE R A, KNIO. SPH modeling of water waves[J].Proc Coastal Dynamics, 2000, 2: 1082-1091.
[15]  任冰, 李雪临, 王永学.波浪冲击过程流场变化特性试验研究[J].海洋工程, 2006, 24(4): 68-74.
[16]  MONAGHAN J J. Fluid motion generated by impact [J]. J Wtrwy, Port, Coastal and Ocean Engrg, 2003, 129(6): 250-259.
[17]  GOMEZ-GESTEIRA M, CERQUEIRO D, CRESPO C, et al. Green water overtopping analyzed with a SPH model[J].Ocean Eng, 2005, 32(2): 223-238.
[18]  OGER G, DORING M, ALESSANDRINI B.Two-dimensional SPH simulations of wedge water entries[J].Journal of Computational Physics, 2006, 213 (2):803-822.
[19]  崔岩, 吴卫, 龚凯, 等. 二维矩形水槽晃荡过程的SPH 方法模拟[J]. 水动力学研究与进展:A辑, 2008, 23(6): 618-624.
[20]  RANDLES P W, LIBERSKY L D.Smoothed particle hydrodynamics: some recent improvements and applications[J].Computer Methods in Applied Mechanics and Engineering, 1996, 139(1-4): 375-408.
[21]  MONAGHAN J J.Particle methods for hydrodynamics[J].Computer Physics Reports, 1985, 3(2): 71-124.
[22]  高巍然, 强洪夫, 张世英. Godunov型CSPM方法[J].计算力学学报, 2007, 24(5): 638-642.

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