Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Calculation of Thrust and Drag Characteristics for Ship′s Propulsion Mechanism of Weis-Fogh Type

  • Ro, Ki-Deok (School of Transport Vechicle Engineering·Institute of Marine Industry, Gyeongsang National University)
  • Published : 2000.11.01
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Abstract

The flow field if a ship's propulsion mechanism of Weis-Fogh type is studied by the discrete vertex method. The wing in a channel is approximated by a finite number of bound vortices, and free vortices representing the separated flow are introduced from the trailing edge if the wing. The time histories of the thrust, the drag, and the moment acting on the wing are calculated, including the unsteady force due to the change of strength of the bound vortices. These calculated values agree well with the experimental values. The flow field of this propulsion mechanism is numerically clarified.

Keywords

References

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