https://doi.org/10.1051/epjconf/202124908007
Aerodynamic and impact thresholds for cohesive mixture of sand and non-volatile liquid
1
Univ Rennes, CNRS, Institut de Physique de Rennes, UMR 6251, 35 042 Rennes, France
2
Univ Rennes, INSA Rennes, LGCGM, 35 043 Rennes, France
3
Univ Nantes, CNRS, Laboratoire Thermique et Energie, UMR 6607, 44306 Nantes Cedex, France
* e-mail: jean-baptiste.besnard@univ-rennes1.fr
Published online: 7 June 2021
The moisture has been recognized to have a significant influence on the initiation movement of sand by wind and consequently on sand transport rates. The pertinent literature regarding these phenomena is sparse and current available theoretical and empirical models exhibit considerable disagreement regarding the magnitude of moisture effects. We believe that these discrepancies comes from the fact that the moisture levels are not well controlled neither properly measured and are susceptible to strongly vary over time due to evaporation. To get rid of the variability of moisture content due to evaporation, we propose a new approach based on the use of non-volatile liquid, namely silicon oil instead of water. This insures a proper control of the liquid content and the production of reliable data concerning the variation of the transport threshold with liquid content.
A video is available at https://doi.org/10.48448/vqdr-7935
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
