Hydrodynamic loads during water entry of two-dimensional and axisymmetric bodies

被引：111

作者：

Battistin, D ^{[1
]}

Iafrati, A ^{[1
]}

机构：

[1] INSEAN, I-00128 Rome, Italy

来源：

JOURNAL OF FLUIDS AND STRUCTURES | 2003年 / 17卷 / 05期

关键词：

D O I：

10.1016/S0889-9746(03)00010-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper the free-surface flow generated by the vertical water entry of two-dimensional symmetric and axisymmetric bodies of arbitrary shape is numerically investigated. The study is carried out in the framework of potential flow of an incompressible fluid with gravity and surface tension effects also neglected. The unsteady flow is computed through a boundary-element formulation and nonlinearities in the free-surface boundary conditions are fully retained. Attention is mainly focused on evaluating the pressure distribution and the total hydrodynamic load acting on the impacting body. For validation, the approach is applied to the water impact of a cone with constant entry velocity, and checks of the self-similarity of the solution are made. Next, the water impact of a circular cylinder and of a sphere are analyzed. Comparisons with available theoretical solutions and experimental data are made. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：643 / 664

页数：22

共 35 条

[11] Multidimensional modal analysis of nonlinear sloshing in a rectangular tank with finite water depth [J].