A Multiphase First Order Model for Non-Equilibrium Sand Erosion, Transport and Sedimentation

TL;DR

This paper introduces a comprehensive multiphase first-order model that captures sand erosion, wind transport, and sedimentation, especially in non-equilibrium conditions affecting sand bed profiles.

Contribution

It presents a novel, easy-to-use multiphase model integrating erosion, transport, and sedimentation with focus on non-equilibrium scenarios.

Findings

Model effectively simulates non-equilibrium sand bed changes

Captures the dynamics of erosion and sedimentation

Applicable to complex sand transport situations

Abstract

Three phenomena are involved in sand movement: erosion, wind transport, and sedimentation. This paper presents a comprehensive easy-to-use multiphase model that include all three aspects with a particular attention to situations in which erosion due to wind shear and sedimentation due to gravity are not in equilibrium. The interest is related to the fact that these are the situations leading to a change of profile of the sand bed.