3D Laser Interferometric CT Measurement of Unsteady Shock-Vortex Flow Discharged from Three Cylindrical Holes

Yoshihiro MIWA; Tomomi ARATANI; Tatsuro INAGE; Masanori OTA; Kazuo MAENO

doi:10.11395/jjsem.14.s57

research-article

3D Laser Interferometric CT Measurement of Unsteady Shock-Vortex Flow Discharged from Three Cylindrical Holes

Yoshihiro MIWA, Tomomi ARATANI, Tatsuro INAGE, Masanori OTA, Kazuo MAENO

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Keywords: Computed Tomography (CT), Laser Interferometry, Shock-Vortex Flow, 3D Density Distribution, Algebraic Reconstruction Technique (ART)

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2014 Volume 14 Issue Special_Issue Pages s57-s60

DOI https://doi.org/10.11395/jjsem.14.s57

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Abstract

The study of shock wave is of significance in understanding supersonic flow. In this paper the three-dimensional (3D) quantitative measurement unsteady and discharging of shock waves is described. Three-dimensional shock-vortex flow field has been investigated by Laser Interferometric Computed Tomography (LICT) measurement with a diaphragmless shock tube in our laboratory. The complex flow field induced by discharging unsteady shock waves from three cylindrical holes can be successfully measured by pulsed LICT with Algebraic Reconstruction Technique (ART), and results are discussed.

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