• 제목/요약/키워드: 후연 반류 모델링

검색결과 1건 처리시간 0.016초

와류격자법에 의한 프로펠러 성능추정 향상을 위한 제안 (Proposal for Improvement in Prediction of Marine Propeller Performance Using Vortex Lattice Method)

  • 서성부
    • 한국해양공학회지
    • /
    • 제25권4호
    • /
    • pp.48-53
    • /
    • 2011
  • Current trends in propeller design have led to the need for extremely complex blade shapes, which place great demands on the accuracy of design and analysis methods. This paper presents a new proposal for improving the prediction of propeller performance with a vortex lattice method using the lifting surface theory. The paper presents a review of the theory and a description of the numerical methods employed. For 8 different propellers, the open water characteristics are calculated and compared with experimental data. The results are in good agreement in the region of a high advanced velocity, but there are differences in the other case. We have corrected the parameters for the trailing wake modeling in this paper, and repeated the calculation. The new calculation results are more in agreement with the experimental data.