Transport rate under irregular sheet flow conditions

This paper presents the results of experiments conducted on sand transport in sheet flow conditions under nonlinear asymmetric irregular oscillations with different frequency spectrums. Two methods are proposed for estimation of the transport rate. The first method which is based on a wave by wave analysis of the irregular velocity profile gives very accurate predictions. The second method, which uses a representative single wave, is less computing time consuming and still gives satisfactory results. The measured net transport rates do not show any dependence on the spectral shape. (C) 1998 Elsevier Science B.V. All rights reserved.