Overland Flow: Hydraulics And Erosion Mechanics by Athol D. Abrahams, Anthony J Parsons

By Athol D. Abrahams, Anthony J Parsons

Encompassing geomorphology, hydrology and agricultural engineering, this gives an interdisciplinary evaluate of a subject very important in either medical And sensible phrases - With the categorical target of selling interplay among modellers, box staff and laboratory experimentalists.

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The anhydrous applicator and planter caused little disturbance to the relatively smooth surface which existed at the study site. Random roughness values for these two operations were less than those reported previously. For the other tillage operations, random roughness measurements obtained in the present study were in close agreement with values reported by Zobeck & Onstad (1987). The addition of rainfall may serve to reduce random roughness. 8 Random roughness values for selected tillage operations used to measure roughness coefficients on interrill areas.

Department of Geography, State University of New York at Buffalo, Buffalo, New York. Hsieh, T. 1964. Resistance of cylindrical piers in open-channel flow. Journal of the Hydraulics Division, Proceedings of the American Society of Civil Engineers 90, HY1 161–73. Brush, Jr 1960. Flow resistance in sinuous or irregular channels. US Geological Survey Professional Paper 282-D. Washington DC: US Government Printing Office. Meyer-Peter, E. Müller 1948. Formulas for bed load transport. Proceedings of the Second Congress of the International Association for Hydraulic Research, 39–64.

A second rainfall simulation run (wet run) was conducted approximately 24 h later, again for a duration of 1 h. A final, very wet rainfall application was applied within one hour after completion of the wet run. 1 Location, slope and particle size analysis of selected soils used to measure roughness coefficients for rills. 8 After steady-state conditions had become established during the very wet rainfall application, inflow was added at the top of each plot to simulate greater slope lengths. Flow addition for each of four inflow increments occurred only after steady-state runoff conditions for the previous inflow increment had become established and selected hydraulic measurements had been made.

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