Аннотация
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.
Язык оригинала | английский |
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Название основной публикации | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 |
Издатель | International Symposium on Turbulence and Shear Flow Phenomena, TSFP10 |
Том | 3 |
ISBN (электронное издание) | 9780000000002 |
Состояние | Опубликовано - 2017 |
Событие | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, Соединенные Штаты Америки Продолжительность: 6 июл 2017 → 9 июл 2017 |
Конференция
Конференция | 10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 |
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Страна | Соединенные Штаты Америки |
Город | Chicago |
Период | 06.07.2017 → 09.07.2017 |