Virtual Reality Technology for Multipurpose Numerical Simulation in Marine Environmental Engineering

해양환경공학의 다목적 수치시뮬레이션을 위한 Virtual Reality 기술

  • Park, Jong-Chul (Dept. of Environmental & Ocean Engineering, Univ. of Tokyo)
  • 박종천 (동경대학 대학원 환경해양공학)
  • Published : 2002.10.25

Abstract

A virtual reality technology for multipurpose numerical simulation is developed to reproduce and investigate a variety of ocean environmental problems in a 3D-Numerical Wave Tank. The governing equations for solving incompressible fluid motion are Navier-Stokes equation and continuity equation, and the Marker-Density function technique is adopted to implement the fully-nonlinear free-surface kinematic condition. The marine environmental situations, i.e. waves, currents, wind, etc., are reproduced by use of multi-segmented wavemaker on the basis of the so-called "snake-principle". In this paper, some numerical reproduction techniques for regular and irregular waves, multi-directional waves, Bull's-eye wave, wave-current, and solitary wave are presented, and a model test in motion with large amplitude of roll angle is conducted in the developed 3D-NWT, using a overlaid grid system.

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