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

  • 제38권1호
  • /
  • Pages.43-51
  • /
  • 2001
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
권호 표지

랜킨소오스 패널법을 이용한 파랑중 선박의 동유체력계수 계산

Computation of the Hydrodynamic Coefficients of Ships in Waves by Rankine Source Panel Methods

  • 양진호 (부산대학교 대학원) ;
  • 송기종 (부산대학교 대학원) ;
  • 전호환 (부산대학교 조선해양공학과(기계기술연구소))
  • 발행 : 2001.02.01
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초록

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.

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.

키워드

참고문헌

  1. 대한조선학회 94 춘계연구발표회 전진하며 전후동요하는 물체주위의 비정상유동해석을 위한 Rankine Source법의 시간영역 해석에 관한 고찰 김용환
  2. 한국해양공학회지 v.14 no.3 비정상 포텐셜유동의 패널법해석에서 포텐셜의 2차 미분값의 수치계산 양진호;전호환
  3. 대한조선학회 논문집 v.31 no.4 파랑중에서 전진동요하는 선박의 특이파수 억제에 관한 연구 이호영;염덕준
  4. 대한조선학회논문집 v.29 no.4 파랑중에서 SWATH선의 부가저항에 관하여 전호환
  5. 대한조선학회논문집 v.36 no.2 쌍동선의 파랑 동하중 추정 전호환;김문성;양진호
  6. 대한조선학회논문집 v.32 no.1 고차경계요소법에 의한 선체주위 유동해석 홍사영;최항순
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