Analysis of a negatively buoyant jet

Kumar, Chandan, Razzaque , Muhammed Mahbubur, & Das, Debabrata (2009) Analysis of a negatively buoyant jet. In International Conference on Mechanical Engineering ICME2009, 26-28th December, 2009, Dhaka, Bangladesh.


The behavior of plane fountains, resulting from the injection of dense fluid (water) upwards into a large container of homogeneous fluid of lower density (air),was investigated. In this study the behavior of fountains was examined numerically and experimentally for different Froude and Reynolds numbers. The flow rate and nozzle diameter of the inlet of the fountain was varied to cover a wide range of Reynolds and Froude numbers. The effect of inclination angle of the inlet for different nozzle diameter and flow rate on fountain behavior was observed. It was found that the height of the fountain greatly depends on Froude number. An empirical correlation was developed for non-dimensional fountain height with Froude number. However the non-dimensional fountain height can more accurately be represented when regressed with both Reynolds and Froude number by the following relationship H/r=exp(5.94)Re^-0.72Fr^2.26. The result are compared with previous numerical and experimental results and found to be consistent.

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ID Code: 54283
Item Type: Conference Paper
Refereed: Yes
Keywords: negatively buoyant jet, Fountain, Modelling
ISBN: 9781424442904
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2009 by the Institute of Electrical and Electronic Engineers, Inc. All Rights Reserved
Deposited On: 10 Dec 2012 04:22
Last Modified: 05 Jan 2013 12:03

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