INCIPIENT MOTION OF PARTICLES UNDER OSCILLATORY FLOW

Proceedings of the International Conference on Coastal Engineering

L. Lenhoff¹ 

[1] Sediment Dynamics Division, National Research Institute for Oceanology, CSIR

关键词: particle motion;    incipient motion;    oscillatory flow;   

DOI  :  10.9753/icce.v18.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

This paper is aimed at the establishment of a generally applicable criterion for the onset of grain motion under the influence of oscillatory flow. Data from previous studies are used in a dimensional analysis and an empirically derived relationship between the dimensionless parameters R* (shear Reynolds number) and D* (dimensionless grain parameter) is proposed as a criterion to be used in coastal engineering problems. This study forms part of a larger programme by the Sediment Dynamics Division of the National Research Institute for Oceanology in Stellenbosch, RSA, which is aimed at the reevaluation and updating of the input parameters and relationships for the predictive equations for coastal sediment transport.

【 授权许可】

Unknown