Shape of a shock wave front diffracting on a perforated wall

Shape of a shock wave front diffracting on a perforated wall  The shape of a shock wave front diffracting on a perforated wall is determined by comparing numerical data and experimental findings. Experiments were conducted in a 60 mm×150 mm cross sectional area shock tube equipped with a double-exposure holographic interferometer. The numerical simulation was conducted using a TVD upwind finite difference scheme. First, a discharge coefficient for the mass flow through the perforations was determined by comparing the numerical results with those obtained using a simplified quasi-one-dimensional analysis. This value agreed well with the experimentally obtained value. Finally, the shape of a backward inclined incident shock wave over a perforated wall was successfully determined by employing this discharge coefficient and the numerical result. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Shape of a shock wave front diffracting on a perforated wall

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Publisher
Springer-Verlag
Copyright
Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s003480050170
Publisher site
See Article on Publisher Site

Abstract

 The shape of a shock wave front diffracting on a perforated wall is determined by comparing numerical data and experimental findings. Experiments were conducted in a 60 mm×150 mm cross sectional area shock tube equipped with a double-exposure holographic interferometer. The numerical simulation was conducted using a TVD upwind finite difference scheme. First, a discharge coefficient for the mass flow through the perforations was determined by comparing the numerical results with those obtained using a simplified quasi-one-dimensional analysis. This value agreed well with the experimentally obtained value. Finally, the shape of a backward inclined incident shock wave over a perforated wall was successfully determined by employing this discharge coefficient and the numerical result.

Journal

Experiments in FluidsSpringer Journals

Published: Mar 19, 1998

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