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반석호(S. H. Van),김상현(S. H. Kim) 한국항해항만학회 2002 한국항해항만학회 학술대회논문집 Vol.3 No.-
해양레저의 기본적인 장비인 모터보트는 대부분 수입된 모터보트에 의존하고 있는 실정이다. 따라서 해양레저 및 모터보트 수요 확대에 대비하여 저가이면서 안전한 국산 모터보트를 개발하는 것이 요구된다. 그러나 해양레저용 모터보트의 국내 개발은 전무하다. 본 연구에서는 해양레저용 보급형 모터보트의 개발의 전 단계로서 모터보트의 개념 설계에 관하여 고찰하였다. 본 연구에서는 먼저 국내 레저선박 보유 현황 및 수요 예측에 대하여 간단히 고찰한다. 또한 해외의 해양레저용 모터보트에 대한 벤치마킹을 수행한다. 그리고 해외 레저용 모터보트의 벤치마킹 결과에 기초한 보급형 모터보트의 요구 성능, 기본 제원의 범위, 필요 설비 등에 대하여 고찰한다. 마지막으로 보급형 모터보트의 선형설계 사례를 제시한다. The motor boat which is the principal equipment of marine leisure depends heavily on imported motor boats in Korea. But because the demand of marine leisure and motor boat increases, it is necessary to develope a cheap and safe domestic-manufactured motor boat. However the development of motor boat for marine leisure is not performed at all in Korea. In this paper, we consider the concept design of public motor boat for marine leisure. The present status and possession prediction of leisure boat are investigated at first. And the benchmarking of the overseas motor boat for marine leisure is performed. And next the required performance, the range of principal dimension and the needed equipment of the public motor boat are investigated based on the benchmarking results of the overseas motor boat. Finally, the example of hull form design for public motor boat is showed.
김정중(J.J. Kim),김형태(H.T. Kim),반석호(S.H. Van) 한국전산유체공학회 1998 한국전산유체공학회 학술대회논문집 Vol.1998 No.-
A computer code has been developed for the computation of the viscous flow around a ship model with the free surface. In this code, the incompressible Reynolds-averaged Navier-Stokes equations are solved numerically by a finite difference method which employes second-order finite differences for the spatial discretization and a four-stage Runge- Kutta scheme for the temporal integration of the governing equations. For the turbulence closure, a modified version of the Baldwin-Lomax model is exploited. The location of the free surface is determined by solving the equation of the kinematic free-surface condition using the Lax-Wendroff scheme and the boundary-fitted grid is generated at each time step so that one of the grid surfaces always coincides with the free surface. An inviscid approximation of the dynamic free-surface boundary condition is applied as the boundary conditions for the velocity and pressure on the free surface. To validate the computational method and the computer code developed in the present study, the numerical computations are carried out for both Wigley parabolic hull and Series 60 CB=0.6 ship model and the computational results are compared with the experimental data.