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| + | Published in ''Experiments in Fluids'' Vol. 52 (1), pp. 261–271, 2012<br /> | ||
| + | doi: 10.1007/s00348-011-1217-9 | ||
== Abstract == | == 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 <math>Ri (8 x 10{ | + | 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 <math>Ri (8 x 10^{-4} < Ri < 1.98)</math>, Reynolds <math>Re (467 < Re < 5,928)</math> and Weber <math>We (2.40 < We < 308.56)</math> numbers. Based on the <math>Re, Ri</math> and <math>We</math> 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 <math>Ri</math> 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. |
| + | |||
| + | <pdf>Media:Draft_Samper_803197447_7459_Geyer2012_Article_FlowBehaviourOfNegativelyBuoya.pdf</pdf> | ||
Latest revision as of 16:05, 20 November 2019
Published in Experiments in Fluids Vol. 52 (1), pp. 261–271, 2012
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 01/01/2011
DOI: 10.1007/s00348-011-1217-9
Licence: CC BY-NC-SA license
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