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Proceedings Paper

Attenuation of shock waves propagating over arrayed spheres
Author(s): Atsushi Abe; Kazuyoshi Takayama
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Paper Abstract

The investigation of attenuation of shock waves propagating over complex geometries is an important and fundamental topic of shock wave research. However, previous studies have been mostly for two-dimensional and relatively simple geometries. In this study, the result of shock wave attenuation over an array of spheres is visualized quantitatively by sequential holographic interferometry in a 60 mm X 150 mm diaphragmless shock tube with very repeatable performance. Interferograms have been re-arranged in time order so as to present an animated display. This dynamic display allows one readily to understand the development of complex shock wave interactions. For comparison two cases were examined: arrayed spheres and arrayed cylinders. It is revealed that for identical initial conditions and blockage ratio, shock waves attenuate more quickly in the case of the arrayed spheres than in arrayed cylinders.

Paper Details

Date Published: 17 April 2001
PDF: 8 pages
Proc. SPIE 4183, 24th International Congress on High-Speed Photography and Photonics, (17 April 2001); doi: 10.1117/12.424329
Show Author Affiliations
Atsushi Abe, Tohoku Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4183:
24th International Congress on High-Speed Photography and Photonics
Kazuyoshi Takayama; Tsutomo Saito; Harald Kleine; Eugene V. Timofeev, Editor(s)

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