CFD simulation on the turbulent mixing flow performance of the liquid-liquid ejector

7th International Conference on Pumps and Fans

机械制造;工业技术

An, W.Z.^1 ; Bie, H.Y.^1 ; Liu, C.C.^1 ; Hao, Z.R.^2

College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao

266100, China^1

Institute of Oceanographic Instrument, Shandong Academy of Science, 29 Zhejiang Road, Qingdao

266001, China^2

关键词: Differential pressures;    Equilibrium state;    Flow performance;    Liquid entrainment;    Suction pressures;    Turbulent intensities;    Turbulent mixing flows;    Working pressures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/129/1/012005/pdf
DOI  :  10.1088/1757-899X/129/1/012005

学科分类：工业工程学

来源: IOP

【 摘 要 】

In order to study the flow performance of the liquid-liquid ejector, 3D ejector simulation models were established to investigate the influences of suction angle, suction number and working condition on the ejector performance. The simulation results showed that when the suction angle was 60°, the total pressure was in equilibrium state. The double suction ejector would induced more vortexes in the suction chamber than that of the single suction ejector, and the turbulent intensity of the fluid inside the ejector was bigger, however, it also caused much more loss in energy. When the working pressure was lower than 0.6 MPa, the liquid entrainment ratio increased rapidly. Once the working pressure reached 0.6 MPa, the liquid entrainment ratio basically remained unchanged. The mass flow rate of the suction medium increased with the increasing of suction pressure, and the differential pressure between the suction pressure and the working pressure at the nozzle also increased simultaneously.