Articles | Volume 22, issue 14
https://doi.org/10.5194/acp-22-9525-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-9525-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jul 2022
Research article |
| 22 Jul 2022
| 22 Jul 2022
Impact of turbulence on aeolian particle entrainment: results from wind-tunnel experiments
Jie Zhang
Key Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, Lanzhou 730000, China
College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
College of Atmospheric Science, Lanzhou University, Lanzhou 730000, China
School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
Li Shi
Key Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, Lanzhou 730000, China
College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
Ning Huang
Key Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, Lanzhou 730000, China
College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
Institute of Geophysics and Meteorology, University of Cologne, 50923 Cologne, Germany
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Revised manuscript not accepted
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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.
Sand and dust emission are usually investigated by wind-tunnel experiments. However, wind-tunnel...
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