Articles | Volume 22, issue 14
Atmos. Chem. Phys., 22, 9525–9535, 2022
Atmos. Chem. Phys., 22, 9525–9535, 2022
Research article
22 Jul 2022
Research article | 22 Jul 2022

Impact of turbulence on aeolian particle entrainment: results from wind-tunnel experiments

Jie Zhang et al.

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Cited articles

Alfaro, S. C., Gaudichet, A., Gomes, L., and Maillé, M.: Modeling the size distribution of a soil aerosol produced by sandblasting, J. Geophys. Res.-Atmos., 102, 11239–11249,, 1997. a
Anderson, R. S. and Haff, P. K.: Simulation of Eolian Saltation, Science, 241, 820–823,, 1988. a
Anderson, R. S. and Haff, P. K.: Wind modification and bed response during saltation of sand in air, in: Aeolian Grain Transport 1. Acta Mechanica Supplementum, edited by: Barndorff-Nielsen, O. E. and Willetts, B. B., Vol. 1, Springer, Vienna,, 1991. a
Bagnold, R. A.: The physics of blown sand and desert dunes, Methuen, New York,, 1941. a
Brown, S., Nickling, W., and Gillies, J.: A wind tunnel examination of shear stress partitioning for an assortment of surface roughness distributions, J. Geophys. Res.-Earth, 113, F02S06,, 2008. a
Short summary
Sand and dust emission are usually investigated by wind-tunnel experiments. However, wind-tunnel flows are usually neutrally stratified without large eddies, which typically develop in the convective atmospheric boundary layer. Here we proposed a novel technique by deploying a piece of randomly fluttering cloth in a wind tunnel to generate the large eddies and found them to enhance the entrainment of sand and dust particles, which explains why large eddies are important to aeolian entrainment.
Final-revised paper