Windblown dust is a significant component of atmospheric PM (particulate matter) in arid regions worldwide, with adverse effects on human health and visibility. In the future, windblown-dust emissions are likely to increase if water tables drop as a result of climatic or anthropogenic changes. To manage this hazard, air-quality managers need quantitative models that predict the impact of climat...

We investigate the steady motion of solid particles through successive jumps over a horizontal, rigid, bumpy bed driven by shearing viscous fluid in absence turbulence, lubrication forces and collisions above bed. employ discrete element method for coupled to mean field continuum model run quasi-two-dimensional simulations that we compare with predictions simple which assumes all follow identic...