风沙中跳跃颗粒的入射角。
Incident angle of saltating particles in wind-blown sand.
机构信息
Key Laboratory of Mechanics on Environment and Disaster in Western China, Ministry of Education, Lanzhou University, Lanzhou, China.
出版信息
PLoS One. 2013 Jul 9;8(7):e67935. doi: 10.1371/journal.pone.0067935. Print 2013.
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° to 180° and thereby the means of angles are larger than published data. Surprisingly, it is found the proportion that angles of 5°-15° 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.
起跳颗粒的入射角度在风沙活动中起着非常重要的作用。本文在风洞中测量了近床面沙粒的入射角度。结果表明，入射角度范围很宽，从 0°到 180°，因此角度平均值大于已发表的数据。令人惊讶的是，发现 5°-15°角度的比例远低于以前的报告。测量高度可能是本研究与以往研究之间测量差异的最重要原因。
Zotero 插件