小间距两喷嘴对置撞击流流场的数值模拟与实验研究

作     者：李伟锋 孙志刚 刘海峰 王辅臣 于遵宏 LI Weifeng;SUN Zhigang;LIU Haifeng;WANG Fuchen;YU Zunhong

作者机构：华东理工大学资源与环境工程学院上海200237 

出 版 物：《化工学报》 (CIESC Journal)

年 卷 期：2007年第58卷第6期

页      面：1385-1390页

核心收录：

学科分类：081704[工学-应用化学] 080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 081701[工学-化学工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：教育部新世纪人才支持计划项目(NCET-05-0413) 国家重点基础研究发展计划项目(2004CB217703)。~~ 

主　　题：两喷嘴对置撞击流 小喷嘴间距 驻点偏移 出口速度分布 

摘      要：Experimental study and numerical simulation were performed for the averaged flow field of two closely spaced opposed jets with hot wire anemometer(HWA)and CFD software and the simulation was compared with the measurement and approximate analytic solution in the *** results showed that the exit velocity profile of the single jet was top-hat distribution due to the presence of boundary *** L2D(where L is nozzle separation and D is nozzle diameter),bimodal distribution of exit velocity profile,low in the middle and high on both sides,was present,while such bimodal distribution of exit velocity profile was absent at L=*** increasing nozzle separation,the stagnation point offset of the impinging plane *** the same velocity ratio,stagnation point offset of the nozzles with uniform profiles was larger than that with top-hat *** approximate analytic solution of the flow field of two opposed jets in the literature was only valid for the nozzles with uniform exit velocity profiles and the prediction accuracy became worse for the nozzles with top-hat exit velocity profiles.