Description du projet
Un système de contrôle de débit pour les turbines à gaz
Les moteurs à turbine constituent la forme de propulsion la plus couramment utilisée pour les aéronefs modernes. Un contrôle du flux interne des moteurs s’avère donc essentiel pour garantir un fonctionnement stable des turbines à gaz, et l’industrie aéronautique entend ainsi améliorer son niveau de maturité technologique (TRL) dans ce domaine. Le projet ACONIT, financé par l’UE, va concevoir, produire et faire la démonstration d’actionneurs destinés à contrôler le débit, qui seront intégrés dans l’étage de compresseur d’un moteur d’avion grandeur nature. Ce projet permettra avant tout d’accroître nos connaissances sur la physique des flux d’un système efficace de contrôle de la poussée en combinant analyses numériques et expérimentales. Les résultats seront mis en application afin d’obtenir des détails fluidiques pour un système de contrôle de débit de gaz et d’actionneurs offrant un TRL élevé.
Objectif
The objective of the ACONIT project is to design, manufacture and test actuators for flow control for an implantation in an aircraft engine. The actuators will fulfill aeronautics requirement in order to increase the Technology Readiness Level (TRL) in this domain. In particular, for the present proposal, one plans to focus on the extension of the stable operating range of axial compressor, allowing thus a reduction of the surge margin through postponing the stall onset. To do so, the first objective of the work is to improve the knowledge of the flow physics of an efficient flow control system by joint numerical and experimental analysis performed in a low speed, single stage axial compressor. The results of this analysis will be used to derive the fluidic specifications for a high TRL actuators and control system. These specifications will be the base for the design and manufacturing of amplified Piezo-electric actuator prototypes whose fluidic performance and operational performance in an environment with vibration and controlled level of temperature will be precisely evaluated before manufacturing final actuators that will be integrated in a full scale engine test facility. Their performance will be evaluated in terms of Surge Margin Improvement as well as in terms of energy balance between the induced consumption and the machine performance improvements.
The consortium grouped for carrying out this project is composed of a SME (CTEC), two academic institutions (Bundeswehr University Munich and ENSAM) and a Research Center (ONERA). It groups skills ranging from internal flow analysis in turbomachineries, to flow control or actuators design, manufacturing and characterisations.
Champ scientifique
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcontrol systems
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- natural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamics
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaeronautical engineering
Programme(s)
Thème(s)
Régime de financement
RIA - Research and Innovation actionCoordinateur
75013 Paris
France