Relative dispersion of a passive scalar plume in turbulent shear flow
Relative dispersion of a passive scalar plume in turbulent shear flow
Relative dispersion of a passive scalar plume was investigated in uniformly sheared, nearly homogeneous, turbulent flow with Re??150 using planar laser-induced fluorescence. Mean concentration maps were determined both in the laboratory frame and in a frame attached to the instantaneous center of mass of the plume cross section. The distance-neighbor function had a shape that was compatible with Richardson's expression. The mean square particle separation, two estimates of which were found to be nearly identical, had a streamwise evolution that was consistent with Richardson-Obukhov scaling with a Richardson's constant of g=0.35. Batchelor scaling was also consistent with a wide range of the results
1-4
Vanderwel, Christina
fbc030f0-1822-4c3f-8e90-87f3cd8372bb
Tavoularis, Stavros
9800ff44-e983-4293-a2b1-f29eec90d359
24 April 2014
Vanderwel, Christina
fbc030f0-1822-4c3f-8e90-87f3cd8372bb
Tavoularis, Stavros
9800ff44-e983-4293-a2b1-f29eec90d359
Abstract
Relative dispersion of a passive scalar plume was investigated in uniformly sheared, nearly homogeneous, turbulent flow with Re??150 using planar laser-induced fluorescence. Mean concentration maps were determined both in the laboratory frame and in a frame attached to the instantaneous center of mass of the plume cross section. The distance-neighbor function had a shape that was compatible with Richardson's expression. The mean square particle separation, two estimates of which were found to be nearly identical, had a streamwise evolution that was consistent with Richardson-Obukhov scaling with a Richardson's constant of g=0.35. Batchelor scaling was also consistent with a wide range of the results
Text
Vanderwel_2014PRE.pdf
- Version of Record
More information
Published date: 24 April 2014
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 371939
URI: http://eprints.soton.ac.uk/id/eprint/371939
ISSN: 1539-3755
PURE UUID: c2ece67b-986e-41da-b53d-c4fd6896eb45
Catalogue record
Date deposited: 21 Nov 2014 14:02
Last modified: 15 Mar 2024 03:50
Export record
Altmetrics
Contributors
Author:
Stavros Tavoularis
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
