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 language | English |
|---|---|
| Title of host publication | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 |
| Editors | Arne Johansson |
| Publisher | TSFP |
| Volume | 3 |
| ISBN (Electronic) | 9780000000002 |
| Publication status | Published - 2017 |
| Event | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, United States Duration: 6 Jul 2017 → 9 Jul 2017 Conference number: 10 http://tsfp10.org/ |
Conference
| Conference | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 |
|---|---|
| Abbreviated title | TSFP 2017 |
| Country/Territory | United States |
| City | Chicago |
| Period | 6/07/17 → 9/07/17 |
| Internet address |