LIF法による対向する超音速自由噴流の構造解析

抄録

The structures of two opposed supersonic argon free jets with different source pressures are studied by flow visualization using laser-induced fluorescence of iodine molecules seeded in argon. The ratio between source pressures is kept at 2.0. Experiments are carried out for various source pressures and various ratios of the source pressure to the pressure of the expansion chamber. Characteristic structures of the flow field are classified roughly into four types depending on the condition of the source pressures and the pressure of the expansion chamber. Specifically, an unstable flow in the interacting region is found. The pressure condition is examined for each type of flow field.