Proposal for Improvement in Prediction of Marine Propeller Performance Using Vortex Lattice Method |
Suh Sung-Bu |
Department of Naval Architecture and Ocean Engineering Dongeui University |
와류격자법에 의한 프로펠러 성능추정 향상을 위한 제안 |
서성부 |
동의대학교 조선해양공학과 |
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© 2011 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Propeller design, Open water characteristics, Vortex lattice method, Lifting surface theory, Advanced velocity, Trailing wake modeling |
핵심용어:
프로펠러 설계, 단독특성, 와류격자법, 양력면 이론, 전진속도, 후연 반류 모델링 |
Abstract |
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. |
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