处于过渡区的圆形负浮力射流最大射流高度的PIV实验分析  

PIV Experimental Analysis of the Maximum Penetration Height of Transitional Round Fountains

作　　者：李晶金 高文峰[1] 李琼[1] 夏耀稳[1] 王飞[1] 孔刘洋 谢祥生 张牧 袁东方 LI Jing-jin;GAO Wen-feng;LI Qiong;XIA Yao-wen;WANG Fei;KONG Liu-yang;XIE Xiang-sheng;ZHANG Mu;YUAN Dong-fang(Solar Energy Research Institute,Key Laboratory of Rural Energy Engineering of Yunnan,Yunnan Normal University,Kunming 650092,China)

机构地区：[1]云南师范大学太阳能研究所,云南省农村能源工程重点实验室,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2021年第4期7-13,共7页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(51866016,51969032)。

摘　　要：利用粒子图像测速(PIV-Particle Image Velocimetry)技术,对均匀环境流体中控制参数在2≤Fr≤8和100≤Re≤700范围内处于过渡区的圆形负浮力射流的最大射流高度进行了实验研究.通过回归分析,得到了无量纲最大射流高度z_(m)与Fr及Fr、Re两个变量组合的定量关系式.Particle Image Velocimetry(PIV)technique has been carried out for transitional round fountains in homogeneous ambient over the ranges of 2≤Fr≤8 and 100≤Re≤700.The effect of these parameters on their maximum penetration heights was examined.By regression analysis,the relationships between the maximum dimensionless penetration height z_(m)and the Fr,or the combination of Fr and Re were obtained both qualitatively and quantitatively.

关 键 词：均匀环境 过渡区圆形负浮力射流 粒子图像测速(PIV) 无量纲最大射流高度z_(m) 

分 类 号：O358[理学—流体力学]