Visualization of shock waves generated from small charges in the air using Mach-Zehnder interferometry in conjunction with high-speed photography

D. S. Mehta; Yuji Wada; Yuji Ogata; Masahiro Seto; T. Isei

doi:10.1117/12.346818

29 April 1999 Visualization of shock waves generated from small charges in the air using Mach-Zehnder interferometry in conjunction with high-speed photography

D. S. Mehta, Yuji Wada, Yuji Ogata, Masahiro Seto, T. Isei

Author Affiliations +

Proceedings Volume 3729, Selected Papers from International Conference on Optics and Optoelectronics '98; (1999) https://doi.org/10.1117/12.346818
Event: Selected Papers from the International Conference on Optics and Optoelectronics, 1998, Dehradun, India

Abstract

The propagation and interaction of shock waves generated by exploding point charges inside an open ended rectangular glass tube (inner size 29 mm X 16.5 mm and length 248 mm) were observed using Mach-Zehnder interferometry in conjunction with high-speed photography. The shock wave velocity in the air was determined using high-speed photographic data and it was found that the shock wave velocity decreases as the radial distance from the explosion center increases. From the determined shock wave velocity data the shock mach number was calculated and the corresponding shock front peak overpressure was determined. The shock reflections from the walls of the tube were also visualized and the reflection coefficient was calculated.

Citation Download Citation

D. S. Mehta, Yuji Wada, Yuji Ogata, Masahiro Seto, and T. Isei "Visualization of shock waves generated from small charges in the air using Mach-Zehnder interferometry in conjunction with high-speed photography", Proc. SPIE 3729, Selected Papers from International Conference on Optics and Optoelectronics '98, (29 April 1999); https://doi.org/10.1117/12.346818

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