Journal of Hydroinformatics (2012) - GP approach for critical submergence of intakes in open channel flows

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Journal of Hydroinformatics In Press, Uncorrected Proof © IWA Publishing 2012 | doi:10.2166/hydro.2012.089

GP approach for critical submergence of intakes in open channel flows

H. Md. Azamathulla and Z. Ahmad

River Engineering and Urban Drainage Research Centre (REDAC), Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia. E-mail: redacazamath@eng.usm.my; mdazmath@gmail.com

Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee-247667, (Uttarakhand), India

First received 3 July 2011; accepted in revised form 22 January 2012. Available online 9 April 2012

ABSTRACT

This technical note presents the genetic programming (GP) approach to predict the critical submergence for horizontal intakes in open channel flow for different bottom clearances. Laboratory data from the literature for the critical submergence for a wide range of flow conditions were used for the development and testing of the proposed method. Froude number, Reynolds number, Weber number and ratio of intake velocity and channel velocity were considered dominant parameters affecting the critical submergence. The proposed GP approach produced satisfactory results compared to the existing predictors.

Keywords: critical submergence; genetic programming; intakes; open channel

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ISSN Print: 1464-7141
Published by IWA Publishing