Critical Froude number for transition from a steady to an unsteady plane fountain injected into a homogeneous fluid

N. Srinarayana*, S. W. Armfield, M. Behnia, Wenxian Lin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

In this paper, we present the critical Froude number for unsteadiness at full development of plane fountains with parabolic velocity inlet profile. Numerical investigations are conducted over the range of Reynolds number, 6 ≤ Re ≤ 120. The critical Froude number for transition from a steady to unsteady flow varies with the Reynolds number. For Re ≳ 60, the transition is independent of Re and is nearly constant at a Froude number of Fr ∼1.0. Over the range 6 < Re ≲ 50, there is a significant increase in the transition Froude number.

Original languageEnglish
Title of host publication17th Australasian Fluid Mechanics Conference 2010
Place of PublicationAuckland, NZ
PublisherAustralasian Fluid Mechanics Society
Pages692-695
Number of pages4
ISBN (Print)9781617829130
Publication statusPublished - 2010
Externally publishedYes
Event17th Australasian Fluid Mechanics Conference 2010, 17AFMC - Auckland, New Zealand
Duration: 5 Dec 20109 Dec 2010

Other

Other17th Australasian Fluid Mechanics Conference 2010, 17AFMC
CountryNew Zealand
CityAuckland
Period5/12/109/12/10

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