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By-pass transition of flat plate boundary layers on the surfaces near the limit of admissible roughness
- 1.0368743 - ÚT 2012 PL eng C - Conference Paper (international conference)
Jonáš, Pavel - Hladík, Ondřej - Mazur, Oton - Uruba, Václav
By-pass transition of flat plate boundary layers on the surfaces near the limit of admissible roughness.
13th European turbulence conference. Warsaw, Poland: University of Warsaw, 2011 - (Bajer, K.; Kopeč, J.; Podziemski, P.), s. 82-82. ISSN N.
[European turbulence conference /13./. Warsaw (PL), 12.09.2011-15.09.2011]
R&D Projects: GA ČR GA101/08/1112; GA ČR GAP101/10/1230
Institutional research plan: CEZ:AV0Z20760514
Keywords : boundary layer by-pass transition * effect of free stream turbulence * effect of surface roughness * joint effect on by-pass transition
Subject RIV: BK - Fluid Dynamics
www.etc13.fuw.edu.pl
It was certied that both the wall roughness and the free stream turbulence accelerate individually the boundary layer development from the laminar state of boundary layer to turbulence. Next it was ascertained that their joint effect amplifies the development of boundary layers so, that the surface roughness impact is predominating but the actions of intensity and length scale of the free stream turbulence disturbances are also signicant.
Permanent Link: http://hdl.handle.net/11104/0203005
Number of the records: 1