Dynamics of large-scale vortices in non-swirling and swirling turbulent jets. time-resolved tomographic PIV measurements

Vladimir M. Dulin, Sergey S. Abdurakipov, Dmitriy M. Markovich, Kemal Hanjalić

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

1 Citation (Scopus)

Abstract

The paper reports on a parallel study of the dynamics of large-scale vortical structures in non-swirling, low-swirl and high-swirl turbulent jets by means of the time-resolved tomographic PIV technique. 3D realizations of the instantaneous velocity and velocity gradients, local strain and rotation rates, helicity and pressure fluctuations are analyzed. Deformation of the large-scale vortices is studied by evaluating the local stretching/compression rates and local values of the Lamb vector divergence. Linear stability analysis is also applied to the mean velocity profiles in order to identify the most unstable azimuthal modes.

Original languageEnglish
Title of host publication10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
EditorsArne Johansson
PublisherTSFP
Volume3
ISBN (Electronic)9780000000002
Publication statusPublished - 2017
Event10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, United States
Duration: 6 Jul 20179 Jul 2017
Conference number: 10
http://tsfp10.org/

Conference

Conference10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Abbreviated titleTSFP 2017
CountryUnited States
CityChicago
Period6/07/179/07/17
Internet address

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