Description du projet
Un examen plus attentif de l’interaction entre l’onde de choc et la couche limite
Le marché européen de l’aviation représente plus de 12 millions d’emplois et quelque 800 milliards EUR d’activité économique européenne. L’avenir de l’industrie repose sur l’amélioration continue de son rendement (réduction de la consommation de carburant et augmentation de la charge utile). Mais cela nécessite des ailes, des gouvernes et des pales de turbomachines plus performantes, où le flux transsonique est monnaie courante. L’atténuation des effets des ondes de choc est le grand défi de l’aérodynamique. D’autant plus que l’augmentation des forces aérodynamiques peut entraîner une séparation des flux et une diminution des performances du moteur et du fuselage. Le projet TEAMAero, financé par l’UE, tentera d’améliorer notre compréhension de la physique de l’interaction onde de choc-couche limite. Son objectif est de parvenir à un contrôle efficace des flux et de permettre l’atténuation des effets des chocs dans les applications concernées.
Objectif
Future, sustainable, growth of the aviation industry relies on continued improvements in efficiency giving reductions in fuelcconsumption and increases in payload. Research efforts therefore focus on aerodynamic performance and structural weightcsavings. This inherently requires more highly performing wings, control surfaces and turbomachinery blades where transoniccflow is common place and the formation of shock waves the key aerodynamic challenge. In particular, the interaction ofcshock waves with boundary-layers is one of, if not the main performance-limiting or safety critical flow phenomena across all of these flow fields. Thus, a good understanding of the interaction of shock waves with boundary layers is essential for the development of future, more efficient, air vehicles and engines.
Increased aerodynamic forces can lead to flow separation and reductions in engine and airframe efficiency. In such cases, flow control is needed to maintain system performance. However, novel designs are also likely to increase the extent of laminar flow and this implies that flow control devices need to operate in a laminar or transitional regime. This requires a better understanding of their function and their interaction with flow transition.
The main research objectives of the TEAMAero project are: (1) improvement of fundamental understanding of shock wave boundary layer interaction (SBLI) physics including three-dimensionality and unsteadiness (2) identification of flow domains best suited to flow control device installation (3) development of flow control schemes using wall transpiration (suction/blowing), vortex generators and surface treatments to delay the separation onset, and (4) development of novel numerical will be updated methods for the prediction of SBLI effects.
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MSCA-ITN - Marie Skłodowska-Curie Innovative Training Networks (ITN)Coordinateur
80-231 Gdansk
Pologne