Interferometric Computed Tomography Measurement and Novel Expression Method of Discharged Flow Field with Unsteady Shock Waves

Abstract

A three-dimensinal interferometric computed tomography (CT) measurement has been applied to the unsteady and high-speed flow field including shock waves. The flow field is induced by shock waves discharged from a pair of circular open ends in the shock tube experiment. The incident shock Mach number is 2.0 and discharged Mach number at the open ends is 2.3. The computational fluid dynamics (CFD) simulation is also applied to this flow field. To implement the detailed discussion of the experimental result along with the CFD result, we propose a novel visualization method named as `distribution combined schlieren image (DCSI)'.