Towards a Distinct Treatment of Incipient Motion for Bed Forms of Low Regimeby Friedrich Schöberl, Univ of Innsbruck, Austria,
Abstract: The principle methods for estimating the incipient particle motion on developed bed forms in the lower regime are compared with each other. Usually only a part of the total wall shear stress, that determines the particle drag is considered to be effective for the onset of motion. Differences of this indirect approach and direct estimations of the particle entrainment at the deformed bed are outlined.
Subject Headings: Particles | Motion (dynamics) | Fluid flow | Water flow | Bed forms | Shear walls | Shear stress | Entrainment
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