Coherent structures in a turbulent swirling jet under vortex breakdown. 3D PIV measurements

Sergey V. Alekseenko, Vladimir M. Dulin, M. P. Tokarev, Dmitriy M. Markovich

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)

Аннотация

The current study reports on spatial structure of a global mode of self-sustaining oscillations in a turbulent swirling jet under vortex breakdown conditions. Ensembles of 2D and 3D velocity fields were measured by stereoscopic and tomographic PIV systems, respectively, and were analysed via proper orthogonal decomposition. For the 2D PIV, the spatial resolution was sufficient to resolve most of the turbulent kinetic energy of the turbulent flow. The resolution in the case of tomographic PIV was lower, but the 3D instantaneous velocity fields unambiguously revealing that the global mode corresponds to a spiralling structure, counter-winded to the direction of the jet swirl.

Язык оригиналаАнглийский
Название основной публикацииProceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015
РедакторыAntonio Segalini
ИздательSpringer Science and Business Media, LLC
Страницы43-50
Число страниц8
ISBN (печатное издание)9783319306001
DOI
СостояниеОпубликовано - 1 янв 2016
Опубликовано для внешнего пользованияДа
Событие5th International Conference on Jets, Wakes and Separated Flows, ICJWSF2015 - Stockholm, Швеция
Продолжительность: 15 июн 201518 июн 2015

Серия публикаций

НазваниеSpringer Proceedings in Physics
Том185
ISSN (печатное издание)0930-8989
ISSN (электронное издание)1867-4941

Конференция

Конференция5th International Conference on Jets, Wakes and Separated Flows, ICJWSF2015
СтранаШвеция
ГородStockholm
Период15.6.1518.6.15

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Alekseenko, S. V., Dulin, V. M., Tokarev, M. P., & Markovich, D. M. (2016). Coherent structures in a turbulent swirling jet under vortex breakdown. 3D PIV measurements. В A. Segalini (Ред.), Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows, ICJWSF 2015 (стр. 43-50). (Springer Proceedings in Physics; Том 185). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-319-30602-5_6