Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Flowfield Calculation for Ship's Propulsion Mechanism of Two-Stage Weis-Fogy Type

2단식 Weis-Foghg형 선박 추진기구의 유동장 특성계산

  • 노기덕 (경상대학교 기관공학과·해양산업연구소)
  • Published : 1998.05.01
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Abstract

The flow patterns and dynamic properties of ship's propulsion mechanism of two-stage Weis-Fogh type are studied by the discrete vortex method. In order to study the effects of the interaction of the two wings two cases of the phase differences of the wing's motion are considered the same phase and the reverse phase. The flow patterns by simulations correspond to the photographs obtained by flow visualization and flowfield of the propulsion mechanism which is unsteady and complex is clearly visualized by numerical simulations. The time histories of the thrust an the drag coefficients on the wings are also calculated and the effects of the interaction of the two wings are numerically clarified.

Keywords

References

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