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

[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.

[发布机构] 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

[效力级别] 工业技术 [学科分类] 工业工程学

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