旋风管内气相的湍流运动特性

›› 2004, Vol. 4 ›› Issue (3): 198-203.

旋风管内气相的湍流运动特性

王建军,金有海

清华大学工程力学系

出版日期:2004-06-20 发布日期:2004-06-20

Gas Turbulence Flow in the Cyclone Tube

WANG Jian-jun,JIN You-hai

College of Mechanical and Electronical Engineering, Petroleum University(East China)

Online:2004-06-20 Published:2004-06-20

摘要/Abstract

摘要： 利用二维激光多普勒测速仪(LDV)测量了旋风管内湍流运动的时均速度、脉动速度、能谱函数、微分尺度及湍流耗散等参数，对湍流特性参数分布进行了详细的描述，并初步分析了旋风管内湍流运动特性对颗粒分离的影响.

关键词: 旋风管, 湍流运动, 激光多普勒测速仪(LDV)

Abstract: In order to improve the separation mechanism, LDV (Laser Doppler Velocimetry) was used to measure the characteristics of gas turbulence flow in the cyclone tube. The distribution of mean velocity, turbulence density, power spectrum and vortex microscale were presented, and the effect of gas turbulence on particle separation was analyzed. Some conclusions were drown: there were different sizes of vortex in the cyclone tube; in the inner vortex region the vortex microscal was small, and the energy dispersion rate was high.

Key words: cyclone tube, turbulence flow, Laser Doppler Velocimetry (LDV)

王建军;金有海. 旋风管内气相的湍流运动特性[J]. , 2004, 4(3): 198-203.

WANG Jian-jun;JIN You-hai. Gas Turbulence Flow in the Cyclone Tube[J]. , 2004, 4(3): 198-203.