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Direct numerical simulations of vortex rings at ReΓ = 7500

Bergdorf, Michael and Koumoutsakos, Petros and Leonard, Anthony (2007) Direct numerical simulations of vortex rings at ReΓ = 7500. Journal of Fluid Mechanics, 581 . pp. 495-505. ISSN 0022-1120.

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We present direct numerical simulations of the turbulent decay of vortex rings with ReΓ = 7500. We analyse the vortex dynamics during the nonlinear stage of the instability along with the structure of the vortex wake during the turbulent stage. These simulations enable the quantification of vorticity dynamics and their correlation with structures from dye visualization and the observations of circulation decay that have been reported in related experimental works. Movies are available with the online version of the paper.

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Additional Information:© Cambridge University Press 2007. Reprinted with permission. (Received 11 October 2006 and in revised form 16 March 2007). Published online 22 May 2007.
Record Number:CaltechAUTHORS:BERjfm07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8652
Deposited By: Archive Administrator
Deposited On:02 Sep 2007
Last Modified:02 Oct 2019 23:53

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