Mathematical modeling of lithodynamic processes

E.V Bondareva,V Breskich,A Zheltenkov,Y Dreizis

doi:10.1051/e3sconf/202022401046

Abstract

A mathematical model for beach reshaping in the vicinity of transverse hydraulic structures has been developed on the basis of the developed unified approach for determining the alongshore transport of heterogeneous sediments as applied to the conditions of pebble and sandy beaches.

Highlights

Existing studies of sediment movement in the coastal zone of the sea and the models and calculation methods developed on their basis make it possible to solve many engineering problems associated with sediment transport and their interaction with hydraulic structures
The reason is the specific properties of the pebble beach, which is characterized by the presence of steeper coastal slopes, in contrast to the sandy beaches
A refined method for calculating the alongshore sediment rate has been developed for the conditions of heterogeneous pebble and sandy coastal slopes

Summary

Introduction

Existing studies of sediment movement in the coastal zone of the sea and the models and calculation methods developed on their basis make it possible to solve many engineering problems associated with sediment transport and their interaction with hydraulic structures. For the same reason, pebbles do not linger in the wave run-up zone, and the ability to be carried out into the sea during a wave rollback is higher than on a sandy beach. All this is the reason for the pressure pulsation in the body of the beach and leads to the fact that the particles on the surface of the beach slope are more mobile. Most studies on the sediment transport and the development of both numerical and analytical models focus on the effect of sediment size on sediment transport It is the specifics of the pebble beach processes that affect the sediment transfer process. An important task is to develop a universal approach to determining the value of alongshore sediment rate for the conditions of inhomogeneous pebble and sandy beaches

Methods and approaches

Conclusion