収束するチャンネル内を伝播する衝撃波後の流れ場の実験的研究
1983 年 31 巻 348 号 p. 27-34
詳細
1983 年 31 巻 348 号 p. 27-34
This paper presents an experimental study of the flow field behind the shock waves propagating into a two-dimensional convergent channel. The experiments were made in a conventional shock tube having a cross section of 12×8cmcm2, with initial shock Mach numbers varying from 1.30 to 2.51 in air. During each run density distributions of the flow field were measured using a MACH-ZEHNDER interferometer. Also previous experimental results were used to calculate temperature distributions.
It is shown that the density gradient is normal to the direction of the propagation of imploding shocks, but it is in the same direction in the case of exploding shocks. Furthermore in the vicinity of the channel vertex, the temperature distribution is nearly uniform over the range of 2x/h <1.0, irrespective of channel shape.
