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Numerical calculation of the dynamic properties of Weis-Fogh type ship's propulsion mechanism
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 Title & Authors
Numerical calculation of the dynamic properties of Weis-Fogh type ship's propulsion mechanism
No, Gi-Deok;
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 Abstract
The dynamic properties of a ship's propulsion mechanism of Weis-Fogh type are studied by the discrete vortex method. The wing in the channel is approximated by a finite number of bound vortices and free vortices representing the separated flow are introduced from the trailing edge of 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 results show a similar tendency to the experimental ones qualitatively and the dynamic properties of this propulsion mechanism are numerically clarified.
 Keywords
Hydraulic Machine;Numerical Analysis;Unsteady Flow;Separation;Fluid Force;Discrete Vortex Method;Ship Propulsion;
 Language
Korean
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