Finite-volume simulation method to predict the performance of a sailing boat |
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Authors: | Hiromichi Akimoto Hideaki Miyata |
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Institution: | (1) Department of Applied Mathematics and Physics, Tottori University, Minami 4-101, Koyama, Tottori 680-8552, Japan, JP;(2) Department of Environmental and Ocean Engineering, The University of Tokyo, Tokyo, Japan, JP |
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Abstract: | A flow-simulation method was developed to predict the performance of a sailing boat in unsteady motion on a free surface.
The method is based on the time-marching, finite-volume method and the moving grid technique, including consideration of the
free surface and the deformation of the under-water shape of the boat due to its arbitrary motion. The equation of motion
with six degrees of freedom is solved by the use of the fluid-dynamic forces and moments obtained from the flow simulation.
The sailing conditions of the boat are virtually realized by combining the simulations of water-flow and the motion of the
boat. The availability is demonstrated by calculations of the steady advancing, rolling, and maneuvering motions of International
America's Cup Class (IACC) sailing boats.
Received: December 25, 2001 / Accepted: March 26, 2002 |
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Keywords: | Free surface Moving boundary Unsteady motion Sailing boat |
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