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01105 am a22001333u 4500 |
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|a Vanderwel, Christina
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|a Tavoularis, Stavros
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|a Relative dispersion of a passive scalar plume in turbulent shear flow
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|c 2014-04-24.
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|u https://eprints.soton.ac.uk/371939/1/Vanderwel_2014PRE.pdf
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|a 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
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