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Characteristics of Hydraulic Shock Waves in an Inclined Chute Contraction - Experiments

Published online by Cambridge University Press:  05 May 2011

C.-D. Jan ,
C.-J. Chang ,
J.-S. Lai  and
W.-D. Guo
C.-D. Jan*
Affiliation:
Department of Hydraulic and Ocean Engineering, and Sustainable Environment Research Center, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
C.-J. Chang*
Affiliation:
Department of Hydraulic and Ocean Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
J.-S. Lai*
Affiliation:
Hydrotech Research Institute, Disaster Research Center, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
W.-D. Guo*
Affiliation:
Hydrotech Research Institute, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Professor
**Ph.D. candidate
****Associate Research Fellow
****Postdoctoral Researcher
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Abstract

This paper presents the experimental results of the characteristics of hydraulic shock waves in an inclined chute contraction with consideration of the effects of sidewall deflection angle φ, bottom inclination angle θ and approach Froude number Fr0. Seventeen runs of laboratory experiments were conducted in the range of 27.45° ≤φ ≤ 40.17°, 6.22° ≤ θ ≤ 25.38° and 1.04 ≤ Fr0 ≤ 3.51. Based on the experimental data, three empirical dimensionless relations for the shock angle, maximum shockwave height, and corresponding position of maximum shockwave were obtained by regression analyses, respectively. These empirical relations would be useful for hydraulic engineers in designing chute contraction structures.

Keywords

Hydraulic shock waveChute contractionSupercritical flow.
Type
Articles
Information
Journal of Mechanics , Volume 25 , Issue 1 , March 2009 , pp. 129 - 136
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2009

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References

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