Numerical and experimental investigation of a vortical flow-inducing jet pump

Morrall, Andrew and Campobasso, Michele Sergio and Quayle, Stephen Douglas (2018) Numerical and experimental investigation of a vortical flow-inducing jet pump. In: CMFF 2018: Conference on Modelling Fluid Flows, 2018-09-042018-09-07.

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Abstract

Experimental analyses and CFD simulations are performed on a vortical flow-inducing jet pump. The device is a multi-nozzle annular jet pump, in which a high-pressure fluid is injected into a bore through circumferentially distributed nozzles. The nozzles are angled axially and radially so that the injected primary fluid produces both suction and a vortical flow pattern. Analysis of the pump is considered as single phase, using compressed air to pump atmospheric air. Experiments are carried out on two jet pump designs, working at different conditions with results used to validate CFD simulations. CFD turbulence model analyses is used to determine the optimal numerical method, with hybrid turbulence models shown to be effective in predicting the pressure produced by the swirling flow phenomena. Suction pressure induced by the jets is shown to be highly dependent on the axial angle of the nozzles, which has considerable impact on the radial and tangential components of the resulting flow field, consequently affecting the pump performance.

Item Type:
Contribution to Conference (Paper)
Journal or Publication Title:
CMFF 2018: Conference on Modelling Fluid Flows
Subjects:
ID Code:
126281
Deposited By:
Deposited On:
06 Jul 2018 15:12
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 10:36