侧吹气流流动特性实验研究  

Experimental study on side-blown flowing characteristics

作　　者：周萍[1] 成慰[1] 马骥[1] 夏中卫 廖舟 

机构地区：[1]中南大学能源科学与工程学院,流程工业节能技术湖南省重点实验室,湖南长沙410083 [2]株洲冶炼集团股份有限公司,湖南株洲412004

出　　处：《中南大学学报（自然科学版）》2016年第8期2879-2883,共5页Journal of Central South University:Science and Technology

基　　金：国家高技术研究发展计划(863计划)项目(2011AA061003)~~

摘　　要：通过搭建侧吹模型实验装置,对侧吹气流流动特性进行实验研究。利用高速摄影仪记录气体侧吹流动过程,并运用MATLAB图像处理方法对实验所得气流流动特性参数等实现自动批量处理。研究结果表明:气泡脱离频率与修正弗劳德数Fr’呈非线性减小关系,与液体黏度υ呈非线性增加关系;量纲一气体穿透深度H/D随修正弗劳德数Fr’呈非线性增加趋势,而与喷管直径D、液体黏度υ呈非线性减小趋势。The investigation on the bubble departure characteristics and gas penetration behavior was performed by using the experimental model method and the imaging method for the immersion side-blowing model. The experimental feature parameter f was extracted by the imaging processing method. The results show that the bubble departure frequency of the bubbles nonlinear decreases with the increase of the modified Froude number Fr＇ and liquid viscosity υ when the nozzle diameter D and liquid temperature T are constant. The dimensionless penetration depth H/D increases with the increase of the modified Froude number Fr＇ and decreases with the increase of the nozzle diameter D and liquid viscosity υ.

关 键 词：浸入式侧吹 水模型 气体穿透深度 气泡脱离频率 

分 类 号：O359.1[理学—流体力学]