Titre :
|
Evaluation of laminar-turbulent transition and equilibrium near wall turbulence models
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Auteurs :
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X. He ;
I. Senocak ;
AL Et
|
Type de document :
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article/chapitre/communication
|
Année de publication :
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2000
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Format :
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p.101-112
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Langues:
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= Anglais
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Catégories :
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THERMIQUE THERMODYNAMIQUE
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Mots-clés:
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ECOULEMENT TURBULENT
;
MODELE
;
ECOULEMENT LAMINAIRE
;
PREVISION
|
Résumé :
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Accurate prediction of laminar-turbulent transition as well as fully turbulent flows is of much practical importance. In this study, both topics are investigated. The e(n) method is used to predict transition locations for flows with various angles of attack around an NACA 0012 airfoil. After the transition point the k-epsilon turbulence model is adopted Computations for flow? over a flat plate are done to understand the impact of grid distribution and the wall function treatment on the performance of the k-epsilon turbulence model. In attached and mildly separated flows satisfactory predictions can be made with the pragmatic e(n) transition model and the k-epsilon turbulence model.
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Source :
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Numerical heat transfer part A, vol n°37
|