On the 3D structure of the flow-field in the vicinity of inclined plate

0498557 - ÚT 2023 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Procházka, Pavel P. - Uruba, Václav - Skála, Vladislav
On the 3D structure of the flow-field in the vicinity of inclined plate.
Journal of Physics: Conference Series. Vol. 1101. Bristol: IOP Publishing, 2018, č. článku 012026. 1101. ISSN 1742-6588.
[Fluid Mechanics Conference (KKMP 2018) /23./. Zawiercie (PL), 09.09.2018-12.09.2018]
Grant CEP: GA ČR GA17-01088S
Institucionální podpora: RVO:61388998
Klíčová slova: stereo PIV * streamwise vorticity * POD
Obor OECD: Applied mechanics
http://iopscience.iop.org/article/10.1088/1742-6596/1101/1/012026/pdf

The motivation of the presented study is supporting new ideas about principle of flight by Hoffman and Johnson, see [1]. The new hypothesis of physical mechanism of flight relies on existence of streamwise vortical structures on the suction side of the airfoil and within its wake. The vortices origin is supposed to be the instability of the boundary layer subjected to adverse pressure gradient. The vortices are of highly dynamical nature, changing theirs position, size and other parameters in time very rapidly. For this experiment the simplest airfoil possible was chosen represented by a flat plate in uniform flow and moderate angle of attack. In the suggested paper detailed measurement of the zone of interest will be carried out using stereo PIV method. System of measuring planes perpendicular to the flow will be explored. POD analysis is to be utilized.
Trvalý link: http://hdl.handle.net/11104/0293167