The influence of a localised region of turbulence on the structural development of a turbulent, round, buoyant jet

Alan J. S. Cuthbertson; Daniela Malcangio; Peter A. Davies; Michele Mossa

doi:10.1016/j.fluiddyn.2006.05.001

The influence of a localised region of turbulence on the structural development of a turbulent, round, buoyant jet

Alan J. S. Cuthbertson, Daniela Malcangio, Peter A. Davies, Michele Mossa

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

Results are presented from a series of laboratory experiments in which the interaction of a turbulent buoyant jet with a localised patch of grid-generated turbulence has been investigated. The experiments show that the effect of the turbulent patch is to arrest the structural development of the buoyant jet at a location determined by the relative values of the r.m.s. turbulent velocities in the patch and jet, respectively. Measurements of the breakdown distance z_c from the jet source have been compared successfully with the predictions of a scaling analysis for the limiting cases of momentum- and buoyancy-dominated regions of the buoyant jet.

Original language	English
Pages (from-to)	683-698
Number of pages	16
Journal	Fluid Dynamics Research
Volume	38
Issue number	10
DOIs	https://doi.org/10.1016/j.fluiddyn.2006.05.001
Publication status	Published - Oct 2006

Keywords

grid-generated turbulence
plumes
buoyant jets
flows
jet breakdown

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10.1016/j.fluiddyn.2006.05.001

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title = "The influence of a localised region of turbulence on the structural development of a turbulent, round, buoyant jet",

abstract = "Results are presented from a series of laboratory experiments in which the interaction of a turbulent buoyant jet with a localised patch of grid-generated turbulence has been investigated. The experiments show that the effect of the turbulent patch is to arrest the structural development of the buoyant jet at a location determined by the relative values of the r.m.s. turbulent velocities in the patch and jet, respectively. Measurements of the breakdown distance zc from the jet source have been compared successfully with the predictions of a scaling analysis for the limiting cases of momentum- and buoyancy-dominated regions of the buoyant jet.",

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author = "Cuthbertson, {Alan J. S.} and Daniela Malcangio and Davies, {Peter A.} and Michele Mossa",

year = "2006",

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T1 - The influence of a localised region of turbulence on the structural development of a turbulent, round, buoyant jet

AU - Cuthbertson, Alan J. S.

AU - Malcangio, Daniela

AU - Davies, Peter A.

AU - Mossa, Michele

PY - 2006/10

Y1 - 2006/10

N2 - Results are presented from a series of laboratory experiments in which the interaction of a turbulent buoyant jet with a localised patch of grid-generated turbulence has been investigated. The experiments show that the effect of the turbulent patch is to arrest the structural development of the buoyant jet at a location determined by the relative values of the r.m.s. turbulent velocities in the patch and jet, respectively. Measurements of the breakdown distance zc from the jet source have been compared successfully with the predictions of a scaling analysis for the limiting cases of momentum- and buoyancy-dominated regions of the buoyant jet.

AB - Results are presented from a series of laboratory experiments in which the interaction of a turbulent buoyant jet with a localised patch of grid-generated turbulence has been investigated. The experiments show that the effect of the turbulent patch is to arrest the structural development of the buoyant jet at a location determined by the relative values of the r.m.s. turbulent velocities in the patch and jet, respectively. Measurements of the breakdown distance zc from the jet source have been compared successfully with the predictions of a scaling analysis for the limiting cases of momentum- and buoyancy-dominated regions of the buoyant jet.

KW - grid-generated turbulence

KW - plumes

KW - buoyant jets

KW - flows

KW - jet breakdown

U2 - 10.1016/j.fluiddyn.2006.05.001

DO - 10.1016/j.fluiddyn.2006.05.001

M3 - Article

SN - 0169-5983

VL - 38

SP - 683

EP - 698

JO - Fluid Dynamics Research

JF - Fluid Dynamics Research

IS - 10

ER -

The influence of a localised region of turbulence on the structural development of a turbulent, round, buoyant jet

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Keywords

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