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Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand

The electrification of sand particles plays an important role in aeolian events. In this paper, the charge-to-mass ratio vertical profiles of saltating particles in wind-blown sand were measured by a field experiments. By combining the results of field measurements with our previous wind-tunnel meas...

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Detalles Bibliográficos
Autores principales: Bo, Tian-Li, Zhang, Huan, Zheng, Xiao-Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4083261/
https://www.ncbi.nlm.nih.gov/pubmed/24998641
http://dx.doi.org/10.1038/srep05590
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author Bo, Tian-Li
Zhang, Huan
Zheng, Xiao-Jing
author_facet Bo, Tian-Li
Zhang, Huan
Zheng, Xiao-Jing
author_sort Bo, Tian-Li
collection PubMed
description The electrification of sand particles plays an important role in aeolian events. In this paper, the charge-to-mass ratio vertical profiles of saltating particles in wind-blown sand were measured by a field experiments. By combining the results of field measurements with our previous wind-tunnel measurements, we discussed the factors affecting the charge-to-mass ratio of saltating particles. It reveals that the magnitude of the charge-to-mass ratio increases exponentially with height above the surface. In addition, the charge polarity of saltating particles depends on the relative size between saltating and creeping particles, and the magnitude of charge-to-mass ratio is determined by wind velocity and the relative size difference ratio between saltating and creeping particles.
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spelling pubmed-40832612014-07-08 Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand Bo, Tian-Li Zhang, Huan Zheng, Xiao-Jing Sci Rep Article The electrification of sand particles plays an important role in aeolian events. In this paper, the charge-to-mass ratio vertical profiles of saltating particles in wind-blown sand were measured by a field experiments. By combining the results of field measurements with our previous wind-tunnel measurements, we discussed the factors affecting the charge-to-mass ratio of saltating particles. It reveals that the magnitude of the charge-to-mass ratio increases exponentially with height above the surface. In addition, the charge polarity of saltating particles depends on the relative size between saltating and creeping particles, and the magnitude of charge-to-mass ratio is determined by wind velocity and the relative size difference ratio between saltating and creeping particles. Nature Publishing Group 2014-07-07 /pmc/articles/PMC4083261/ /pubmed/24998641 http://dx.doi.org/10.1038/srep05590 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Bo, Tian-Li
Zhang, Huan
Zheng, Xiao-Jing
Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title_full Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title_fullStr Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title_full_unstemmed Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title_short Charge-to-mass Ratio of Saltating Particles in Wind-Blown Sand
title_sort charge-to-mass ratio of saltating particles in wind-blown sand
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4083261/
https://www.ncbi.nlm.nih.gov/pubmed/24998641
http://dx.doi.org/10.1038/srep05590
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