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On the Size of the Eddies in the Outer Turbulent Wall Layer: Evidence from Velocity Spectra Read chapter Read first chapter

2016 | OriginalPaper | Chapter

Velocity of Line Plumes on the Hot Plate in Turbulent Natural Convection

Authors : Vipin Koothur, Baburaj A. Puthenveettil

Published in: Progress in Wall Turbulence 2

Publisher: Springer International Publishing

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Abstract

We measure the velocity field in a horizontal field near the hot plate in turbulent convection using stereo PIV for \({10^6<Ra_w<10^9}\) and \({5.2<Pr<4}\). We then extract the line plumes from this velocity field using a divergence criterion using the PIV technique on the obtained plume structures, which gives us the velocity field of the plume motion. The statistical analysis of this velocity field of the plume motion shows the coexistence of two different kinds of motion of the plumes, lateral merging and motion along the plumes.

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previous chapter On the Extension of Polymer Molecules in Turbulent Viscoelastic Flows: Statistical and Tensor Investigation
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Metadata
Title
Velocity of Line Plumes on the Hot Plate in Turbulent Natural Convection
Authors
Vipin Koothur
Baburaj A. Puthenveettil
Copyright Year
2016
Book
Progress in Wall Turbulence 2

Print ISBN: 978-3-319-20387-4

Electronic ISBN: 978-3-319-20388-1

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-3-319-20388-1_16

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