• 제목/요약/키워드: 케비테이션수

검색결과 1건 처리시간 0.014초

프로펠러 압력면 캐비테이션의 초기발생 추정 및 실험 검증 (Prediction of the Propeller Face Cavity Inception and Experimental Verification)

  • 안병권;이창섭;유용완;문일성
    • 대한조선학회논문집
    • /
    • 제44권5호
    • /
    • pp.467-473
    • /
    • 2007
  • Cavitation phenomena appearing on ship propellers have long been interested and recent theoretical analysises give good results comparing with model tests. In accordance with a continuous rise in heavy powered and high speed ships, hull forms have been changed and loads acting on the propeller surface have also been increased, and they result in various and particular cavitations. In some cases, cavitation appears not only on the back but also on the face of the propeller and it causes additive pressure fluctuations and erosion of the propeller and reduces propulsion efficiency of the ship. In this study, we predict the face cavity inception using unsteady propeller analysis based on the panel method and compare the results with experimental observations.