Integral Length Scale in Sediment-Suspending Flow

by Neil L. Coleman, USDA Natl Sedimentation Lab, United States,



Document Type: Proceeding Paper

Part of: Sediment Transport Modeling

Abstract:

The Clauser integral length scale is an adequate scaling parameter for velocity defect profiles in clearwater and sediment-suspending flows in open channels. Velocity defect profiles plotted in Clauser coordinates show similitude for like bulk flow Richardson numbers, regardless of the particle size of the sediment in suspension. The Clauser scale scales inner and outer flow regions appropriately, while the Richardson number accounts for particle size effects and the influence of concentration gradient.

Subject Headings: Fluid flow | Fluid velocity | Velocity profile | Suspended sediment | Sediment | Particle velocity | Open channel flow

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