定常流入場におかれた翼形まわりの変動流れの挙動

概要

論文の詳細を見る
With speeding up in high-speed boats and hydraulic machinery, it becomes an important issue to reduce the drag of the hydraulic elements. The computational fluid dynamics are very useful in precisely simulating the details of the local flow characteristics concerning the vorticity and the flow separation around a hydrofoil. We therefore investigate the flow characteristics in the steady inflow around a hydrofoil in an experiment with subcavitation and in computation with free-cavitation. Our computational results agree well with the experiments for the power spectra of the lift and the drag fluctuation, as well as the time-averaged values of the lift and the drag. The separation bubble calculated by the computation is visualized by the attached cavitation near the leading edge.
社団法人日本機械学会の論文
1991-09-25