走行時の三次元ACV模型まわりの流れ
1974 年 22 巻 241 号 p. 63-71
詳細
1974 年 22 巻 241 号 p. 63-71
A cushion flow is influenced by the forward speed of ACV. When the experiments are conducted on a closed moving-ground water tunnel, flow visualization is achieved by injecting oil particles (n-Butyl phthalate 81%, kerosene 19%) into the flow.
For the subcritical forward speed, the flow pattern on the plane of symmetry of models can be observed, in which the front jet is bifurcated and becomes overfed condition, on the other hand the rear jet becomes underfed condition, respectively. The cushion flow between the front and the rear jets is subdivided into two regions, where there are turblent diffusion flow adjacent to the overfed jet and major channel flow.
