抄録
An interferometric CT technique is applied to observe a 3-D flow field induced by shock waves. A small duct model with a pair of circular open ends is introduced in the test section of the shock tube, which can be rotated around its central axis to change the observation angle. The estimated shock Mach number is about 2.3 at the exits of the model in nitrogen gas. Computational fluid dynamics (CFD) simulation is also applied to the 3-D flow field. The Euler equation system are solved by TVD scheme. The results of CT measurement and CFD simulation are discussed.
