Pair dispersion statistics and coherent structures

Manu Goudar Vishwanathappa, Gerrit Elsinga

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Pair dispersion is studied to model scalar transport in many natural and industrial applications. The link between the particle pair dispersion and coherent flow structures is explored in this work. This was done by kinematically simulating tracer particles in an ideal flow structure [4] extracted from an isotropic turbulent flow. It was found that the variation of the mean and the mean square separation lengths with time were qualitative similar to the results in actual turbulent flows. It was also observed that the quantitative results matched till 4-5 Kolmogrov time units. Ideal structure with two vortices and a shear layer was able to emulate the qualitative results. Is the combination of shear layer and one/two vortices is sufficient or necessary to emulate pair dispersion statistics needs to be studied in the future.
Original languageEnglish
Title of host publicationProceedings 15th European Turbulence Conference 2015
PublisherDelft University of Technology
Number of pages2
Publication statusPublished - 2015
EventThe 15th European Turbulence Conference, ETC-15, Delft, The Netherlands - s.l.
Duration: 25 Aug 201528 Aug 2015

Conference

ConferenceThe 15th European Turbulence Conference, ETC-15, Delft, The Netherlands
Period25/08/1528/08/15

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