Title :
The Computation of Water Entry Problem of Prismatic Planning Vessels
Author :
Sun, Hanbing ; Zou, Jin ; Zhuang, Jiayuan ; Wang, Qingxu
Author_Institution :
Nat. Defence Key Lab. of Autonomous Underwater Vehicle Technol., Harbin Eng. Univ., Harbin, China
Abstract :
In this paper, a two-dimensional wedge water entry problem with a constant downward velocity is solved by the boundary element method in a time domain based on the potential theory, and the pressure distribution on the wedge surface is acquired, then the pressure distribution is integrated to calculate the total vertical force and the pitch moment of the planing vessels. In the simulation of the two dimensional water entry problem, the influence of gravity is considered, the linear boundary element and the fourth-order Runge-Kutta time stepping mode are used to solved the problem, in addition, the Bernoulli´s equation is used to calculated the vertical force on the wedge surface in a computer. Finally, the numerical results is compared with the Troesch´s experiments results, the feasibility of the numerical method is verified.
Keywords :
Runge-Kutta methods; boundary-elements methods; marine vehicles; military vehicles; remotely operated vehicles; Bernoulli´s equation; Troesch´s experiments; boundary element method; fourth-order Runge-Kutta time stepping mode; high-performance marine vehicle; linear boundary element; potential theory; pressure distribution; prismatic planing vessels; time domain; two-dimensional wedge water entry problem; unmanned surface vessels; water entry problem computation; wedge surface; Fluids; Gravity; Hydrodynamics; Marine vehicles; Numerical models; Planing;
Conference_Titel :
Intelligent Systems and Applications (ISA), 2011 3rd International Workshop on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9855-0
Electronic_ISBN :
978-1-4244-9857-4
DOI :
10.1109/ISA.2011.5873255
