Incident Angle of Saltating Particles in Wind-Blown Sand

被引：17
|
作者：
Fu, Lin-Tao [1 ,2 ]
Bo, Tian-Li [1 ,2 ]
Gu, Hai-Hua [1 ,2 ]
Zheng, Xiao-Jing [1 ,2 ]
机构：
[1] Lanzhou Univ, Key Lab Mech Environm & Disaster Western China, Minist Educ, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Sch Civil Engn & Mech, Dept Mech, Lanzhou 730000, Peoples R China
来源：
PLOS ONE | 2013年 / 8卷 / 07期
基金：
国家教育部科学基金资助; 中国国家自然科学基金;
关键词：
COLLISIONS; GRAINS; BED; TRANSPORT; MODEL;
D O I：
10.1371/journal.pone.0067935
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Incident angle of saltating particles plays a very important role in aeolian events. In this paper, the incident angles of sand particles near the sand bed were measured in wind tunnel. It reveals that the incident angles range widely from 0 degrees to 180 degrees and thereby the means of angles are larger than published data. Surprisingly, it is found the proportion that angles of 5 degrees-15 degrees occupy is far below previous reports. The measuring height is probably the most important reason for the measurement differences between this study and previous investigations.
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页数：6
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