局所周期撹乱による二次元混合層の乱流遷移

（レイノルズ数の差異）

抄録

The effect of the disturbance on the laminar-turbulent transition of the mixing layer is experimentally investigated. So far, two kinds of experiments were conducted with the Reynolds number of 5000; in one, the plates at the nozzle exit do not protrude into the nozzle section and remain in a 'stationary state' and in the other, 'anti-symmetrical oscillating state', the plates oscillate perpendicularly to the flow and anti-symmetrically with each other in relation to the flow. In the present study, the Reynolds number was decreased to 3000 and this flow field was visualized by smoke wire method. The effect of the Reynolds number was examined with aid of the visualized flow field image.