Formation of vortex wakes at flow separation from plate
- Авторлар: Gorelov D.1, Govorova A.1
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Мекемелер:
- Omsk Branch of Sobolev Institute of Mathematics SB RAS
- Шығарылым: Том 24, № 3 (2017)
- Беттер: 361-368
- Бөлім: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/216961
- DOI: https://doi.org/10.1134/S0869864317030052
- ID: 216961
Дәйексөз келтіру
Аннотация
The plane nonlinear initial boundary value problem about the separated flow past a plate set in motion at a constant velocity from the state of rest has been considered. Results of a numerical experiment which have allowed us to trace in detail the vortex-wake formation process behind a vertical plate are reported. It is shown that, after the beginning of the plate motion, several stable vortical structures, including a Karman street, form in succession behind the plate. It is found that, on the emergence of the Karman street, there occurs a sharp and substantial growth of vortex-wake intensity and hydrodynamic drag force with a pulsating time behavior. A conclusion about the origination, in this regime, of self-sustained oscillations of the liquid in the vicinity of the plate is drawn.
Авторлар туралы
D. Gorelov
Omsk Branch of Sobolev Institute of Mathematics SB RAS
Хат алмасуға жауапты Автор.
Email: gorelov@ofim.oscsbras.ru
Ресей, Omsk
A. Govorova
Omsk Branch of Sobolev Institute of Mathematics SB RAS
Email: gorelov@ofim.oscsbras.ru
Ресей, Omsk