TY - GEN

T1 - Dynamics of large-scale vortices in non-swirling and swirling turbulent jets. time-resolved tomographic PIV measurements

AU - Dulin, Vladimir M.

AU - Abdurakipov, Sergey S.

AU - Markovich, Dmitriy M.

AU - Hanjalić, Kemal

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85033232711&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85033232711

VL - 3

BT - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017

PB - International Symposium on Turbulence and Shear Flow Phenomena, TSFP10

T2 - 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017

Y2 - 6 July 2017 through 9 July 2017

ER -