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ESTIMATION OF WAVE DRIFT FORCE BY NUMERICAL WAVE TANK

ESTIMATION OF WAVE DRIFT FORCE BY NUMERICAL WAVE TANK,Katsuji Tanizawa,Makiko Minami,Shigeru Naito

ESTIMATION OF WAVE DRIFT FORCE BY NUMERICAL WAVE TANK   (Citations: 1)
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A fully nonlinear numerical wave tank (NWT) is applied to es- timation of the wave drift force acting on two-dimensional xed and floating bodies. This is a time domain simulation program which solves simultaneous equations of ideal fluid motion and float- ing body motion. Using this NWT, the diraction problem and the radiation-diraction problem of a two-dimensional Lewis form body in regular waves are simulated and the wave drift force is calculated both from transmitted wave and from direct pressure integral on the wetted body surface. To examine the accuracy of NWT, the rst harmonic components of simulated hydrodynamic forces, body motions, wave reflection and transmission coecients and wave drift force are compared with linear theory and exper- imental data of Nojiri (1975). The rst harmonic components of the nonlinear simulation are conrmed to be in good agreement with linear theory.
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