Modelling of the effect of the foregoing wake on the bypass transitionon the airfoil

0369060 - ÚT 2012 RIV CZ eng C - Conference Paper (international conference)
Straka, P. - Příhoda, Jaromír - Šimurda, David
Modelling of the effect of the foregoing wake on the bypass transitionon the airfoil.
Proceedings of the International Conference Experimental Fluid Mechanics 2011. Liberec: Technical University of Liberec, 2011 - (Vít, T.; Dančová, P.; Novotný, P.), s. 971-978. Vol. 2. ISBN 978-80-7372-784-0.
[Experimental Fluid Mechanics 2011. Jičín (CZ), 22.11.2011-25.11.2011]
R&D Projects: GA ČR(CZ) GAP101/10/1329
Institutional research plan: CEZ:AV0Z20760514
Keywords : bypass transition modelling * external flow * k-omega turbulence model
Subject RIV: BK - Fluid Dynamics

A modified algebraic model of the bypass transition was used for the simulation of the flow around the symmetrical airfoil NACA 0012 in the tandem configuration. The transition model is based on local variables only to enable its application for complex flow geometry using unstructured computational grids. The attention was especially focused on the flow near the leading edge where the boundary layer is not yet fully developed while used empirical correlations were established for the boundary-layer flow. The numerical simulation was compared with experiments of Lee and Kang (2000) carried out for the Reynolds number Re = (2x6)x10^5, the zero angle of attack and various distance between both airfoils. The agreement of numerical simulation with experimental data is quite satisfactory.
Permanent Link: http://hdl.handle.net/11104/0203219