The Common Inlet Configuration: An Advanced Boundary Layer Ingestion Engine Integration Concept
La configuration Common Inlet : une configuration avancée d'intégration motrice avec ingestion de couche limite
Résumé
This paper details design activities performed at ONERA on the Common Inlet Concept. This configuration features two turbofans fed by a common circular inlet around the fuselage, split in two parts, one half for each engine. The purpose of that kind of inlet is to ingest the whole boundary layer around the fuselage, in order to maximise the performance benefit of such an extreme BLI concept. A detailed aerodynamic design of the concept is proposed together with a far-field exergy based analysis to assess its aero-propulsive performance. On top of this, a comprehensive performance analysis of the configuration based on advanced OAD models is provided for two missions (business jet and SMR) to evaluate the benefits of the Common Inlet at aircraft level.
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