Some experimental results on flow in a diverging 2D channel

0422237 - ÚT 2014 RIV DE eng J - Článek v odborném periodiku
Antoš, Pavel - Hladík, Ondřej - Jonáš, Pavel - Uruba, Václav
Some experimental results on flow in a diverging 2D channel.
Proceedings in Applied Mathematics and Mechanics. Roč. 13, č. 1 (2013), s. 297-298. ISSN 1617-7061.
[Annual Meeting of the International Association of Applied Mathematics and Mechanics /84./. Novi Sad, 18.03.2013-22.03.2013]
Grant CEP: GA ČR GAP101/12/1271
Institucionální podpora: RVO:61388998
Klíčová slova: free stream turbulence * negative pressure gradient * diverging 2D channel
Kód oboru RIV: BK - Mechanika tekutin
http://onlinelibrary.wiley.com/doi/10.1002/pamm.201310144/pdf

The effect of the free stream turbulence (FST) on the essential flow characteristics was investigated in the diverging 2D channel. The diverging channel was modelled in the closed type working section by fastening a displacement body above the flat plate that is parallel with the wind-tunnel axis. The angle of the channel expansion 11 degree induced the pressure gradient parameter K = from -0.16 to -0.28 with the flow velocity U0=30 m/s at the start of expansion, x=0. The height of the channel is 0.15 m at x = 0. FST was either natural 0.3 percent or amplified by turbulence generating grids/screens with turbulence levels up to 5 percent.
Trvalý link: http://hdl.handle.net/11104/0229047