Water and Energy International
Year : 1946, Volume : 3, Issue : 1
First page : ( 40) Last page : ( 49)
Print ISSN : 0974-4207. Online ISSN : 0974-4711.

Slope Formulas for Rivers and Canals^*

Thomas A. R., C. E., I. S. E., Executive Engineer, Inst A. M.

Bombay

^*Abridged from paper contributed at the annual meeting of the Research Committee 1945. The complete paper will appear in the Central Board of Irrigation Annual Report Technical 1945.

Abstract

From the earliest days of hydraulic engineering, various formulas have been used to relate the velocity. of flow with the dimensions and slope of a channel, those at present in most general use probably being the formulas of Kutter and Manning. In this article the physical basis is discussed and the application of slope formulas to rigid channels with clear flow, rigid channels with sediment transport, and erodible channels with sediment transport, is reviewed. It is shown that finality has not been reached in any of these three cases, particularly the last mentioned and that much research is still needed.

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