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Title: Prediction of zonal and total discharges in smooth straight prismatic compound channels using regression modeling
Authors: Khatib, Issam 
Abaza, Khaled A. 
Abu Fkhidah, Ismail 
Keywords: Stream channelization;Sediment control;Water resources development
Issue Date: 2014
Publisher: Elsevier
Source: Al-Khatib I. A., Abaza, K.A., Abu Fkhidah, I. (2014) Prediction of zonal and total discharges in smooth straight prismatic compound channels using regression modeling. Flow Measurement and Instrumentation, 38, 40-48.
Abstract: Experimental results are presented concerning the zonal and total discharge distribution and characteristics in a compound channel cross-section comprising one rectangular main channel and two symmetrical floodplains. The discharges in the main channel, floodplains, and total compound channel are found to be highly correlated to several dimensionless parameters defined using the compound channel cross-section geometry. Multi-variable regression analysis was utilized for developing predictive models that can estimate the main channel, floodplains and total discharges as a function of four different dimensionless parameters.The developed models to predict the zonal and total discharges in compound channels are found to be highly significant according to several major statistics including the model standard error,coefficient of determination (R2), and F-statistic. The developed multi-variable regression-based models are also tested validity available experimental data. Several statistical tests applicable to the analysis of residuals have indicated the effectiveness of the developed predictive models.
Description: Published in : Flow Measurement and Instrumentation, Volume 38, August 2014, Pages 40-48
Appears in Collections:Institute of Environmental and Water Studies

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