Title: Numerical simulation of three-dimensional dynamic motion of a standard NACA model in an impact problem

Authors: Amir Hossein Nikseresht; Hossein Ghazizade-Ahsaee

Addresses: Mechanical and Aerospace Engineering Department, Shiraz University of Technology, Modaress Blvd., Shiraz, Iran. ' Mechanical and Aerospace Engineering Department, Shiraz University of Technology, Modaress Blvd., Shiraz, Iran

Abstract: Impact problems associated with water entry have important applications in various aspects of naval architecture and ocean engineering. One of the most noticeable examples is bottom slamming of marine vehicles. In this research, a code which is based on the finite volume method is used to simulate the two phase flow water impact considering dynamic equations of motion with moving mesh. Volume of fluid (VOF) scheme is used to model the free surface shape. At first, water impact of a 3D wedge is numerically simulated. The results show a very good agreement with experimental data and show the accuracy and robustness of the solution. At last as an application, the 3D water impact of a standard NACA model which can be used as a flying boat keel is simulated.

Keywords: slamming force; 3D symmetric impact; dynamic mesh; dynamic equations; volume of fluid; VOF; water entry; marine vehicles; finite volume method; simulation; two phase flow; water impact; flying boat keel; flying boats; sea planes; bottom slamming.

DOI: 10.1504/IJESMS.2012.050003

International Journal of Engineering Systems Modelling and Simulation, 2012 Vol.4 No.4, pp.190 - 194

Published online: 30 Aug 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article