Direct simulation of impinging plane fountains in a homogeneous fluid

Srinarayana, N., Lin, W., McBain, G.D., and Armfield, S.W. (2006) Direct simulation of impinging plane fountains in a homogeneous fluid. In: Proceedings of the 13th International Heat Transfer Conference. From: 13th International Heat Transfer Conference, 13-18 August 2006, Sydney, NSW, Australia.

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Abstract

In this paper we present the behaviour of plane fountains, injected into a homogeneous fluid of lower density, impinging on a ceiling. The transient behaviour of the impinging fountain with Reynolds number 100 ≤ Re ≤ 1000, Prandtl number Pr=7, and Froude number Fr = 4 and 5 is studied by direct numerical simulation using a fractional-step solution of the Navier–Stokes equations. When a vertical fountain impinges on a ceiling it spreads until gravity forces it to fall. The results show that the spreading distance is dependent on the source Froude number and independent of Reynolds number for range studied.

Item ID: 4830
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: transitional fountain; turbulence; direct numerical simulation; flow dynamics
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ISBN: 1-56700-226-9
Date Deposited: 31 Jul 2009 04:00
FoR Codes: 09 ENGINEERING > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 50%
97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 50%
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