A theoretical note on aerodynamic lifting in dust devils

被引：5
作者：
Wang, Zhen-Ting [1 ,2 ]
机构：
[1] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
[2] Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
来源：
ICARUS | 2016年 / 265卷
关键词：
Earth; Atmospheres; dynamics; Mars; surface; DRAG; SIMULATION; INTERFACE; SPHERE; MODEL; GRAIN;
D O I：
10.1016/j.icarus.2015.10.016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The stress distribution of a known rotating flow near the ground in fluid mechanics indicates that the horizontal aerodynamic entrainment of particles within dust devils is attributed to friction force rather than pressure force. The expression of dust emission rate on Earth was theoretically discussed based on simulated flow field and our current understanding of the physics of aeolian dust. It seems that transition flow is vital to dust devils on Mars. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：79 / 83
页数：5
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