RANS Simulation of Laminar-Turbulent Transition in Separation Bubbles on Airfoils
Résumé
Predicting the location of laminar-turbulent transition, and modelling the transition region inside a separation bubble are two related questions presently limiting the performance of flow simulations. Considering these questions requires both an understanding of the underlying physics and a number of improvements of the available numerical tools. Several airfoils presenting short and long laminar bubbles are considered, trying to define a common approach with an internal prediction of laminar-turbulent transition. Comparisons to existing measurements and current predictions will be presented. Two methods for transition prediction are used with the same elsA numerical platform, transition criteria and the Menter-Langtry approach.
Origine | Fichiers produits par l'(les) auteur(s) |
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