Abstract
A unified approach has been developed to assess the integral alongshore sediment transport for the conditions of heterogeneous pebble and sandy beaches. The energy formulas for determining the sediment discharge have been modified for the conditions for calculating the integral alongshore sediment transport on heterogeneous pebble and sandy beaches. For this, the coefficient included in the energy formulas is determined using the Ackers-White method.
Highlights
There are various approaches to determining the alongshore sediment discharge [1]
It should be borne in mind that most of the calculation formulas for the alongshore sediment flow were obtained from the dependences for sediment transport in open channels by replacing the bottom shear stresses in the channel flow W0 by the bottom shear stresses from waves in the flow Wwc
This is how the well-known Bijker, Ackers-White, and Engelund-Hansen dependences were obtained [2]. Such an approach to the channel dynamics of sediment is based on the Du Boys equation [3] in which the sediment discharge is proportional to the bottom shear stress
Summary
There are various approaches to determining the alongshore sediment discharge (energy, balance of forces, based on dimensional analysis) [1]. This is how the well-known Bijker, Ackers-White, and Engelund-Hansen dependences were obtained [2] Such an approach to the channel dynamics of sediment is based on the Du Boys equation [3] in which the sediment discharge is proportional to the bottom shear stress. The Schoklitsch method [3] is used, in which the sediment discharge is proportional to the energy of the water flow
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