RANS Simulation of Laminar-Turbulent Transition in Separation Bubbles on Airfoils
| Autor: | Perraud, Jean, Bernardos, Luis, Marty, Julien, Delattre, Gregory |
|---|---|
| Přispěvatelé: | ONERA / DMPE, Université de Toulouse [Toulouse], ONERA-PRES Université de Toulouse, DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon], ONERA-Université Paris-Saclay, André, Cécile |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics::Fluid Dynamics
[PHYS]Physics [physics] [SPI]Engineering Sciences [physics] RANS TRANSITION PREDICTION [SPI] Engineering Sciences [physics] LAMINAR-TURBULENT TRANSITION TRANSITION LAMINAIRE-TURBULENT PREVISION DE TRANSITION EN MODE RANS SEPARATION BUBBLE BULBE DE DECOLLEMENT LAMINAIRE [PHYS] Physics [physics] |
| Zdroj: | NATO/STO AVT 307 – Separated Flows NATO/STO AVT 307 – Separated Flows, Oct 2019, TRONDHEIM, Norway |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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