Simulation of complete water exit of a fully-submerged body

被引：33

作者：

Ni, B. Y. ^{[1
]}

Zhang, A. M. ^{[1
]}

Wu, G. X. ^{[1
,2
]}

机构：

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

[2] Univ London Univ Coll, Dept Mech Engn, London WC1E 7JE, England

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2015年 / 58卷

基金：

中国国家自然科学基金;

关键词：

Complete water exit; Free-surface breakup; Body/water detachment; Boundary-element method; 3-DIMENSIONAL THEORY; ENTRY PROBLEMS; FREE-FALL; IMPACT; MOTION; CONE;

D O I：

10.1016/j.jfluidstructs.2015.07.010

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The whole process of water exit of a fully-submerged rigid body is simulated using the boundary-element method for the velocity potential. A numerical procedure is proposed for the free-surface breakup as well as for body detachment from water. Convergence and sensitivity studies have been conducted for the procedure and consistent results have been achieved. Detailed simulations are undertaken for a spheroid emerging and departing from water. Results are provided for pressure and force on the body, as well as the step-by-step free surface deformation, including the development of the jet and formation of the cavity. The effect of Froude number is investigated, as well as the body shape in terms of the ratio of its horizontal and vertical dimensions. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：79 / 98

页数：20

共 40 条

[1]

Abramowitz Milton, 1964, Handbook of Mathematical Functions: with Formulas, Graphs, and Mathematical Tables, V55

[2]

[Anonymous], 1929, Technical Report Archive and Image Library

[3] Wave impact underneath horizontal decks [J].

Baarholm, R ;

Faltinsen, OM .

JOURNAL OF MARINE SCIENCE AND TECHNOLOGY, 2004, 9 (01) :1-13

[4] Hydrodynamic loads during water entry of two-dimensional and axisymmetric bodies [J].

Battistin, D ;

Iafrati, A .

JOURNAL OF FLUIDS AND STRUCTURES, 2003, 17 (05) :643-664

[5]

Bronshtein I.N., 2013, Handbook of Mathematics

[6] NUMERICAL SIMULATIONS OF NONLINEAR AXISYMMETRICAL FLOWS WITH A FREE-SURFACE [J].

DOMMERMUTH, DG ;

YUE, DKP .

JOURNAL OF FLUID MECHANICS, 1987, 178 :195-219

[7] NUMERICAL PREDICTIONS OF SHIP MOTIONS AT HIGH FORWARD SPEED [J].

FALTINSEN, O ;

ZHAO, R .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1991, 334 (1634) :241-252

[8] Slamming in marine applications [J].

Faltinsen, OM ;

Landrini, M ;

Greco, M .

JOURNAL OF ENGINEERING MATHEMATICS, 2004, 48 (3-4) :187-217

[9] WATER-ENTRY AND WATER-EXIT OF A HORIZONTAL CIRCULAR-CYLINDER [J].

GREENHOW, M .

APPLIED OCEAN RESEARCH, 1988, 10 (04) :191-198

[10] Water entry and exit of horizontal circular cylinders [J].

Greenhow, M ;

Moyo, S .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1997, 355 (1724) :551-563

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