Particle Image Velocimetry Measurement of Flow Across Tube Bundle in Waste Heat Boiler

作     者：Chen Bin Guo Liejin (Xi’an Jiaotong University, Xi’an 710049, China ) 

作者机构：Xi’an Jiaotong University Xi’an China 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2000年第9卷第3期

页      面：249-256页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：National Natural Science Foundation for KeyProgram in China (59995460-2) 

主　　题：tube bundle flow across cylinder turbulent wake. 

摘      要：In the present paper the experimental investigations of flow across staggered tube bundles in waste heat boiler are conducted by mans of PIV (Particle Image Velocimetry) system. Flow visualization and velocity distribution of the wake between different cylinders are measured in detail. It is concluded that there are still Von Karman vortices in the wake and the phenomena of vortex shedding, pairing, merging are observed in the flow. The Von Karman vortices can’t fully developed because of the existence of the downstream cylinder There is interaction between main streams and vortices, and the development of the vortex is enhanced by this interaction. Meanwhile some statistical results are performed. The distribution of correlated variables of the velocity fluctuations u’ u’, u’ v’, v’ v’ and the space correlation coefficients are obtained.