Grain shape effects on aeolian sediment transport
The influence of shape as shown by photographic studies of collision, aerodynamic entrainment and grain trajectories is discussed as a factor in determining sediment transport rate. Collision generates more bed activity as sphericity increases, whereas grains with a low sphericity are more readily entrained at slow windspeeds by direct action of the wind. As sphericity decreases grain trajectories become longer and flatter.
KeywordsTransport Rate Quartz Sand Grain Shape Shape Effect Ejection Angle
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