Numerical and experimental modelling of transition in a separated boundary layer on the NACA63A421 Airfiol

0359604 - ÚT 2012 RIV CZ eng J - Journal Article
Ďuriš, M. - Popelka, Lukáš - Příhoda, Jaromír - Šimurda, David
Numerical and experimental modelling of transition in a separated boundary layer on the NACA63A421 Airfiol.
Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava. Roč. 56, č. 3 (2010), s. 47-53. ISSN 1210-0471.
[International Meeting of Departments of Fluid Mechanics and Thermomechanics held in Rožnov pod Radhoštěm /29./. Rožnov pod Radhoštěm, 23.06.2010-25.06.2010]
R&D Projects: GA MŠMT(CZ) 1M06031; GA ČR GA103/09/0977
Institutional research plan: CEZ:AV0Z20760514
Keywords : boundary layer transition * CFD * airfoil
Subject RIV: BK - Fluid Dynamics

The paper is concerned with numerical modelling of transition of separated boundary layer. The model of laminar/turbulent transition is based on the combination of empirical terms determining position of the transition and averaged Navier-Stokes equations closed by the k-ω SST turbulence model. The model of transition is applied in computation of 2D flow past NACA63A421 airfoil. Computation is performed using the commercial code ANSYS Fluent 6.3.26, in which the transition method is implemented as a User-Defined-Function. Computed distributions of Cp along the airfoil are verified by comparison with experimental data, which were obtained by measurements in a closed circuit wind tunnel at the constant Reynolds number and several angles of attack. Comparisons prove applicability of the implemented trasitional model.
Permanent Link: http://hdl.handle.net/11104/0197361