Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Computation of the Hydrodynamic Coefficients of Ships in Waves by Rankine Source Panel Methods

랜킨소오스 패널법을 이용한 파랑중 선박의 동유체력계수 계산

  • 양진호 (부산대학교 대학원) ;
  • 송기종 (부산대학교 대학원) ;
  • 전호환 (부산대학교 조선해양공학과(기계기술연구소))
  • Published : 2001.02.01
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Abstract

The unsteady problems of ships in waves are analyzed by a low order panel method with Rankine source. Considering the basic flow as the uniform incoming flow(so called Kelvin flow) and also the double body flow. the solutions to satisfy the governing equation with the boundary conditions are obtained, and these two results are compared. The hydrodynamic coefficients for the modified Wigley hull and Series 60($C_B=0.7$) are computed and compared with the experimental data available and also other computational results published. It is shown that the computational results by the double body approximation agree well with the experimental results compared with those by the uniform Kelvin flow approximation.

본 연구는 랜킨소오스법과 저차 패널법을 이용하여 파랑 중 선박의 비정상 문제를 해석하였다. 기본유동을 균일 입사 유동(소위 Kelvin 유동)과 이중모형 유동의 두 가지로 가정하여 지배방정식과 경계조건을 만족하는 해를 구하고 비교하였다. 수정 Wigley 선형과 Series 60($C_B=0.7$) 선형에 대해 동유체력을 계산하여 실험 값 및 기존의 계산 값과 비교하였다. 이중모형에 의한 계산 값이 균일 입사 유동에 의한 계산 값보다 실험 치에 보다 더 가까운 결과를 보였다.

Keywords

References

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