Saltaion of Blown Sand Particles and Wind-Velocity Distribution

Abstract

Saltation motion of blown sand is analyzed by coupling of solving equation of motion and the model fore irregular repulsion on the bed surface. Furthermore, the suppression of the Reynolds stress due to the additional force by which the blown sand is accelerated is taken into account to evaluate the wind velocity distribution. Under equilibrium, by using the fact that the Reynolds stress at the bed should equal the critical tractive force, the equilibrium transport rate and wind velocity profile with blown sand are predicted reasonably.