This paper presents a comparative study between the results obtained from the mathematical model and the experimental data of free overfall in circular channels (with and without flat base), following statistical and error analyses of data to ascertain the adequacy of the mathematical model. For the discharge predictions, the mathematical model tuned by an adjustable parameter is found to be accurate one, while the regression (empirical) formula fails to estimate discharge precisely. © 2005 International Association of Hydraulic Engineering and Research.

Subhasish Dey

Department of Civil & Infrastructure Engineering

IIT Jodhpur

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Journal	Journal of Hydraulic Research
Publisher	International Association of Hydraulic Engineering Research
ISSN	00221686