文献类型：期刊文献

英文题名：Study on flow field characteristics in a reverse rotation cyclone with PIV

作者：He, Mengya[1];Zhang, Yanhong[1];Ma, Liang[1];Wang, Huanglin[1];Fu, Pengbo[1];Zhao, Zhihuang[1]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Ass, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：126

起止页码：100

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20181004877044);WOS:【SCI-EXPANDED(收录号:WOS:000430755200011)】；

基金：We would like to express our thanks for the sponsorship of National Key Research and Development Program of China (2016YFC0204500), National Natural Science Foundation of China (51608203), Shanghai Rising-Star Program (17QB1400300), Science and Technology Commission of Shanghai Municipality (16dz1206400).

语种：英文

外文关键词：Reverse-rotation cyclone; Particle image velocimetry testing (PIV); Velocity distribution; Computational fluid dynamics simulation (CFD)

摘要：This study adopted particle image velocimetry (PIV) to understand flow-field movements in the conventional cyclone and reverse-rotation cyclone (RC). Tracer particles were prepared by preparing a 5-wt% sugar solution at normal temperature and pressure for velocity measurement, cloud and distribution velocity maps were generated at various flow rates using three cross-sections. Compared with conventional cyclone, the PIV testing results indicate that the tangential and radial velocities of RC increased at higher flow rates and decreased at lower heights, suggesting adequate radially symmetric distributions despite variations in heights and flow rates. The radial velocity exhibited adequate diagonally symmetric distribution, implying that the indicating excellent symmetry and regularity in the velocity distribution of the flow-field images of the separator, a sign of stable flow fields in the separator. Finally, the comparison showed a similar distribution and variation patterns, which was collected through PIV testing and computational fluid dynamics (CFD) simulation.