Development of Weis-Fogh Type Ship's Propulsion Mechanism Visualization and Numerical Analysis of Flowfield;

Weis-Fogh형 선박 추진기구의 개발 유동장의 가시화 및 수치해석

The flowfield of Weis-Fogh type ship's Propulsion is visualized by numerical simulations using the discrete vortex method and by the hydrogen bubble technique. The simulations are performed by assuming that the separations occur at the trailing edge of the wing. The streak lines and time lines are calculated by introducing the tracers at adequate intervals. They agree well with experimental results. The flowfield is unsteady and complex, but the properties of the flow are clarified by numerical and experimental visualization.