Experimental Analysis of the Flow Characteristics of an Adjustable Critical-Flow Venturi Nozzle  

作　　者：Chun Ye Jingjing Gao Zhihui Wang Weibiao Zheng Yibei Wang Xingkai Zhang Ming Liu 

机构地区：[1]Cooperative Innovation Center of Unconventional Oil and Gas(Ministry of Education&Hubei Province),Yangtze University,Wuhan,430100,China [2]Hubei Oil and Gas Storage and Transportation Engineering Technology Research Center,Wuhan,430100,China [3]Key Laboratory of Drilling and Production Engineering for Oil and Gas,Wuhan,430100,China [4]Siji Petroleum Machinery Company,SINOPEC,Jingzhou,434000,China [5]Petroleum Engineering Technology Research Institute of Shengli Oilfield Company,SINOPEC,Dongying,257000,China

出　　处：《Fluid Dynamics & Materials Processing》2023年第3期754-765,共12页流体力学与材料加工（英文）

基　　金：The authors would like to acknowledge the support provided by the National Natural Science Foundation of China(No.62173049);the open fund of the Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University),Ministry of Education(Grant K2021-17).

摘　　要：The response of an adjustable critical-flow Venturi nozzle is investigated through a set indoor experiments aimed to determine the related critical flow rate,critical pressure ratio,and discharge coefficient.The effect of a variation in the cone displacement and liquid content on the critical flow characteristics is examined in detail and it is shown that the former can be used to effectively adjust the critical flow rate.The critical pressure ratio of the considered nozzle is above 0.85,and the critical flow control deviation of the gas flow is within±3%.Liquid flow can reduce the gas critical mass flow rate accordingly,especially for the cases with larger liquid volume and lower inlet pressure.The set of results and conclusions provided are intended to support the optimization of steam injection techniques in the context of heavy oil recovery processes.

关 键 词：Adjustable critical flow venturi nozzle critical pressure ratio critical mass flow rate gas-liquid two-phase critical flow 

分 类 号：O35[理学—流体力学]