スプリッタを有する振動平板まわりの流れ : 離散うずモデルによる数値解析

抄録

The discrete vortex model together with the conformal mapping method has been applied to analyze the flow around an oscillating flat plate with splitter in the uniform stream, as the approach to analyze the flow past a deforming and/or moving body. Numerical calculations are performed for four different splitter lengths at three amplitudes and three frequencies, then vortex patterns and unsteady forces are obtained. The vortex pattern by calculations has been compared with the flow visualization using the hydrogen-bubble method. From the calculations, it has been found that the vortex pattern shows good agreement with the flow visualization, and that the forces on the plate show remarkable tendencies in some cases.