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Visualization of Mechanical Processes: An International Online Journal


ISSN Online: 2152-209X

Visualization of Mechanical Processes: An International Online Journal

DOI: 10.1615/VisMechProc.v1.i3.110

A STUDY OF FLOW FIELD WITH SHOCK WAVE DISCHARGED FROM A PIPE

Ema Tamura
TokyoMetropolitan College of Industrial Technology,
Syuta Kitajima
Bosch Corporation, ECU Gasoline Systems Division, Tokyo, 150-8360, Japan
Junjiro Iwamoto
Tokyo Denki University, Chiyoda-ku, Tokyo, 101-8457, Japan

ABSTRACT

The purpose of this paper is to study experimentally the behavior of the flow field behind a shock wave discharged from a pipe and the phenomena associated with it. The shock wave is generated by a nondiaphragm-type shock tube (MO tube). The flow field is visualized by three different methods, i.e., shadow photography, Schlieren photography, and Mach-Zehnder interferometry for varying shock wave Mach numbers. It is found that the second shock forms within the vortex ring induced by the shock wave discharged from the pipe and the second vortex ring forms downstream of it.