Open AccessHYDRODYNAMIC COEFFICIENTS AND FORCES ON MULTIHULLS IN SHALLOW WATER WITH CONSTANT OR VARIABLE DEPTH
Author(s) -
Noureddine Dabssi,
Mohamed Chagdali,
Alain Hémon
Publication year - 2008
Publication title -
transport
Language(s) - English
Resource type - Journals
eISSN - 1648-4142
pISSN - 1648-3480
DOI - 10.3846/1648-4142.2008.23.245-252
Subject(s) - added mass , constant (computer programming) , hull , variable (mathematics) , mechanics , waves and shallow water , harmonic , flow (mathematics) , boundary element method , classical mechanics , boundary (topology) , potential flow , physics , mathematics , mathematical analysis , geometry , geology , finite element method , vibration , thermodynamics , computer science , acoustics , oceanography , programming language
Numerical and hydro dynamical procedures are developed to compute bidimensional hydrodynamic coefficients and forces on multihulls associated with harmonic oscillations in shallow water with constant or variable depth. The forces are composed of two parts and include the sum of incident and diffracted forces and hydrodynamic reaction. The latter one is used to determinate the hydrodynamic coefficients (added mass and damping). The numerical method used is the Boundary Element Method. We can compute flow around multihulls sections. An application to cylindrical, right triangular and rectangular hull forms is presented.