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Proceedings Paper

Propagation of the spherical short-duration shock wave in a straight tunnel
Author(s): Jae Woon Ahn; So Young Song; Jun Wung Lee; Joon Mook Yang
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Paper Abstract

Propagation processes of shock waves incident at the entrance of the straight shock tube have been photographed with a high-speed camera and pressure-time profiles have been recorded with piezoelectric gages. It is concluded that the shock front repeatedly changes a convex to a concave and vice versa with a series of damped oscillations and becomes a stable plane shock front determined by experimental conditions. Good agreement is found between the calculated and measured shock wave interaction angle and the velocity of the Mach stem for the region located up to 24 cm from the entrance. There is considerable difference between the calculated and measured pressure near the entrance of a shock tube but as the shock wave propagates farther, the difference becomes small and remains within the range of experimental error.

Paper Details

Date Published: 1 April 1991
PDF: 9 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.23936
Show Author Affiliations
Jae Woon Ahn, Agency for Defence Development (South Korea)
So Young Song, Agency for Defence Development (South Korea)
Jun Wung Lee, Agency for Defence Development (South Korea)
Joon Mook Yang, Choongnam National Univ. (South Korea)


Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)

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