The aim of work is to study and standardize the operating modes to do viscous simulations with a rational approach with low cells-number, for carrying out quickly the calculations, without any necessity of super-computers. This methodology involves the study of different hulls, displacement and planing, evaluating a system of localized mesh-sizing of the computational grid that could be standardized for each type of examined hull.In addition a protocol to get a good simulation in the shortest time possible is attempted. In the first part of the study 3-DOF simulations for evaluating trim, resistance, pressure field and waves of a series of vesselswere carried out. Then the numerical results were compared with experimental towing tank tests. Finally , the method was applied for searching the best dynamic trim for some displacement and semidisplacement hulls.
Computational simulations with low cells number for displacement hulls and planing boats: a rational approach
AGRUSTA, ANDREA ANTONIO;BRUZZONE, DARIO;
2014-01-01
Abstract
The aim of work is to study and standardize the operating modes to do viscous simulations with a rational approach with low cells-number, for carrying out quickly the calculations, without any necessity of super-computers. This methodology involves the study of different hulls, displacement and planing, evaluating a system of localized mesh-sizing of the computational grid that could be standardized for each type of examined hull.In addition a protocol to get a good simulation in the shortest time possible is attempted. In the first part of the study 3-DOF simulations for evaluating trim, resistance, pressure field and waves of a series of vesselswere carried out. Then the numerical results were compared with experimental towing tank tests. Finally , the method was applied for searching the best dynamic trim for some displacement and semidisplacement hulls.
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