Scale Modeling of Wooden Debris Accumulation at a Debris Rack
Publication: Journal of Hydraulic Engineering
Volume 139, Issue 8
Abstract
To prevent damages due to transported wooden debris during a flood, the debris is often retained in defined zones upstream of populated areas using a debris rack. Because thorough numerical modeling of the debris accumulation process is still challenging given the randomness of debris accumulation and the interaction between sediment and wooden debris, one main tool to study debris retention structures involves small-scale modeling. The main purpose of this experimental study is to analyze various aspects regarding the modeling of wooden debris and to provide information on reducing the laboratory effort. The focus is on the various factors influencing the accumulation process and the backwater rise and whether or not it is important to model them properly in small scale. The results indicate a significant effect of the approach-flow Froude number on the debris accumulation process, whereas the debris properties have only a minor effect on the resulting backwater rise so that effects of debris mixture are negligible.
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Acknowledgments
The authors would like to thank Daniel Sidler for his laboratory assistance.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 139 • Issue 8 • August 2013
Pages: 827 - 836
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Dec 7, 2011
Accepted: Dec 4, 2012
Published online: Jul 15, 2013
Published in print: Aug 1, 2013
Discussion open until: Dec 15, 2013
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