Simulation of water entry of a wedge through free fall in three degrees of freedom

被引：71

作者：

Xu, G. D. ^{[2
]}

Duan, W. Y. ^{[2
]}

Wu, G. X. ^{[1
]}

机构：

[1] UCL, Dept Mech Engn, London WC1E 7JE, England

[2] Harbin Engn Univ, Coll Shipbldg Engn, Harbin 150001, Peoples R China

来源：

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2010年 / 466卷 / 2120期

基金：

美国国家科学基金会;

关键词：

water entry; free fall motion; three degrees of freedom; auxiliary function method; time domain simulation; boundary element method; NUMERICAL-SIMULATION; IMPACT; FLUID; BOUNDARY; BODIES; ANGLES; LIQUID;

D O I：

10.1098/rspa.2009.0614

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The water entry problem of a wedge through free fall in three degrees of freedom is studied through the velocity potential theory for the incompressible liquid. In particular, the effect of the body rotation is taken into account, which seems to have been neglected so far. The problem is solved in a stretched coordinate system through a boundary element method for the complex potential. The impact process is simulated based on the time stepping method. Auxiliary function method has been used to decouple the mutual dependence between the body motion and the fluid flow. The developed method is verified through results from other simulation and experimental data for some simplified cases. The method is then used to undertake extensive investigation for the free fall problems in three degrees of freedom.

引用

页码：2219 / 2239

页数：21

共 21 条

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