자유표면 점성 유동의 준쇄파 수치연구

Numerical Study on Sub-Breaking of Free Surface Viscous Flow

  • 곽승현 (한라대학교, 시스템응용공학부)
  • 발행 : 2003.10.24

초록

The viscous interaction of stern wave is studied by simulating the free-surface flows, including sub-breaking phenomena around a high speed catamaran hull advancing on calm water. The Navier-Stokes equation is solved by a finite difference method where the body-fitted coordinate system, the wall function and the triple-grid system are invoked. The numerical appearance of the sub-breaking waves is qualitatively supported by the experimental observation They are also applied to study precisely on the stern flow of S-103 as to which extensive experimental data are available. For the catamaran, computations are carried out for the mono ana twin hulls.

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