SUCCESSIVE SALTATION OF A SAND GRAIN BY WIND

Proceedings of the International Conference on Coastal Engineering

Yoshito Tsuchiya¹ 

[1] Disaster Prevention Research Institute Kyoto University

关键词: saltation;    wind/sand interaction;   

DOI  :  10.9753/icce.v12.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

In order to establish the mechanics of sand transport in an air or water stream, the mechanics of saltation of sand grains should first be considered In sand storms, most of the saltating sand grains on a granular bed have successively continued the saltation motion In this paper, such a saltation motion is defined as successive saltation A theoretical approach to the saltation of a single sand grain on a fixed granular bed is proposed on the basis of the equations of motion for the saltation and the dynamic characteristics of collision between a saltating sand grain and bed sand grains Some experiments of the successive saltation of a single sand gram on a fixed granular bed were carried out to compare with the theoretical relationships It was verified from the comparison that the theoretical relationships of the height and distance of saltation of a sand gram are in fairly good agreement m substance with the results of experiment.

【 授权许可】

Unknown