A Frictional Resistance Model for the Analysis of Non-Point Source Pollution Processes

by C. Richardson, New Mexico Tech, United States,
A. Parr, New Mexico Tech, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


This study experimentally investigated the effect of a permeable bed for steady, laminar and smooth turbulent free surface flow on the Darcy-Weisbach friction factor. Flow velocities and depths were varied over ranges corresponding to overland flow conditions. Empirical equations were obtained to predict the friction factor as functions of flow and bed parameters.

Subject Headings: Nonpoint pollution | Friction | Flow resistance | Overland flow | Fluid flow | Free flow | Drag (fluid dynamics) | Water flow

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