Published in Experiments in Fluids Vol. 52 (1), pp. 261–271, 2011
doi: 10.1007/s00348-011-1217-9

Abstract

In this paper we investigate experimentally the injection of a negatively buoyant jet into a homogenous immiscible ambient fluid. Experiments are carried out by injecting a jet of dyed fresh water through a nozzle in the base of a cylindrical tank containing rapeseed oil. The fountain inlet flow rate and nozzle diameter were varied to cover a wide range of Richardson , Reynolds and Weber numbers. Based on the and values for the experiments, we have determined a regime map to define how these values may control the occurrence of the observed flow types. Whereas plays a stronger role when determining the maximum penetration height, the effect of the Reynolds number is stronger predicting the flow behaviour for a specific nozzle diameter and injection velocity.

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Published on 06/03/19

DOI: 10.1007/s00348-011-1217-9
Licence: CC BY-NC-SA license

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