The simultaneous measurement of transient particle size and concentration in aeolian sand flow

被引：0

作者：

Li, De-Biao ^{[1
]}

Guo, Lie-Jin ^{[1
]}

Wang, Yue-She ^{[1
]}

Wang, Ye-Chun ^{[1
]}

Xiao, Feng-Jun ^{[1
]}

机构：

[1] State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2012年 / 33卷 / 09期

关键词：

Particle size analysis - Sand - Wind speed - Diffraction - Wind tunnels;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Based on laser-diffraction technique, the improved method of particle concentration measurement is proposed in this paper. The information of particle size and concentration can be obtained simultaneously by this method. Based on this method, detailed data about the distribution of the particle size and concentration in aeolian-sand flows near sand-bed surface are obtained in a large-scale sand-bed wind tunnel experimental system. The experimental result shows that particle number concentration increases linearly with the increase of the wind velocity, and the free-stream wind velocity close to the mobile bed has selectivity for particle size.

引用

页码：1527 / 1530