Název: Application of the algebraic bypass-transition model for internal and external flows
Autoři: Straka, P. ; Příhoda, Jaromír
Typ dokumentu: Příspěvky z konference
Konference/Akce: Experimental Fluid Mechanics 2010, Liberec (CZ), 2010-11-24 / 2010-11-26
Rok: 2010
Jazyk: eng
Abstrakt: A modified algebraic model of bypass transition was implemented into the in-house numerical code for the simulation of 2D compressible turbulent flow using the RANS equations and the k-omega turbulence model. The intemittent character of flow in the transition region is described by the algebraic relation for the intermittency coefficient and by empirical relations for the onset and the length of the transition region. The modified algebraic model considers different intermittency coefficient in the boundary layer and in the outer turbulent stream. The proposed model was verified by means of test cases ERCOFTAC covering boundary-layer flow with various free-stream turbulence and pressure gradient. Further, the model was applied for the simulation of the transitional flow through a turbine blade cascade and around the NACA 0012 aerofoil.
Klíčová slova: bypass transition modelling; internal and external flows; k-omega turbulence model
Číslo projektu: CEZ:AV0Z20760514 (CEP), GAP101/10/1329 (CEP), IAA200760614 (CEP)
Poskytovatel projektu: GA ČR, GA AV ČR
Zdrojový dokument: International Conference Experimental Fluid Mechanics 2010, ISBN 978-80-7372-670-6

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0190891

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-42091


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference