CFD Simulation of Flow Characteristics in Liquid-Liquid Ejectors

Abstract:

Computational Fluid Dynamics (CFD) technique was employed to investigate the flow regime and pattern in liquid-liquid ejectors. The results show that the turbulent dissipation rate decreases initially and then increases with the increase of the secondary flow mass rate at a fixed working flow rate, and increases as the working flow mass rate increases at a fixed secondary flow rate. The shape of the flow distribution is convex when the ratio of suction flow velocity to jet flow velocity (velocity ratio) is 0.25,while the shape is concave at the ratio of 4. In addition, the deflection of the flow field inside ejectors is affected by the variation of secondary flow feed angle. There exists an angle of about 24°, at which the flow pattern would be relatively reasonable.

• Periodical: Advanced Materials Research (Volumes 785-786)
• Pages: 1164-1167
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.785-786.1164
• Online since: September 2013
• Authors: Yan Zhang, Yang Dong Hu, Lian Ying Wu
• Keywords: CFD Simulation, Flow Field Distribution, Liquid-Liquid Ejector, Turbulent Dissipation Rate

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