CORDIS - EU research results
CORDIS

Supporting Understanding of Boundary Layer Ingesting Model Experiment

Project description

Reducing fuel consumption with rear-mounted engines

Boundary layer ingestion (BLI) is a promising technology under investigation that could help reduce aircraft fuel burn. With BLI, aircraft engines will be located near the rear of the aircraft so that air flowing over the aircraft body becomes part of the mix of air going into the engine and is then accelerated out the back. However, determining these engines’ actual performance experimentally is challenging. The EU-funded SUBLIME project is developing a flexible and robust experimental set-up to establish dependencies amongst the propulsor shape/position, the fan inlet distortion pattern and the corresponding power savings. The project will conduct wind tunnel experiments supported by high-fidelity computational fluid dynamics simulations to predict the full-scale behaviour of the aircraft architectures suitable for appropriate propulsor installation.

Objective

SUBLIME (Supporting Understanding of Boundary Layer Ingestion Model Experiment)

The introduction of engines integrated with the rear fuselage (BLI engines) in large passenger aircrafts poses new challenges regarding accurate experimental assessment of their performance, especially in terms of power savings, over conventional propulsive architectures (e.g. podded engines) as the engine is fed with a distorted flow. The SUBLIME project will address this challenge, resulting in a flexible and robust experimental set-up to establish dependencies among the propulsor shape/position, the fan inlet distortion pattern and the corresponding power savings. A consortium of an R&D institute, an SME, and 2 Universities with complementary skills will produce this result in close coordination with the topic manager in 36 months, asking for a grant of € 3.612.500.
Coordinator ARA will provide a number of aircraft configurations equipped with BLI propulsors integrated in the rear fuselage, designed and optimized in cooperation with HIT09 (mainly responsible for CFD studies and fan design), Cranfield University (mainly responsible for theoretical and experimental force bookkeeping) and Chalmers University of Technology (mainly involved in engine cycle studies), to be subsequently manufactured and tested by ARA in their transonic wind tunnel.
The project will advance the state of the art in BLI studies by means of wind tunnel activities supported by high-fidelity CFD simulations to consistently predict full-scale behaviour of the aircraft architectures suitable for appropriate propulsor installation which minimizes inlet flow distortions and maximizes power saving. The results of installed wind-tunnel tested aircraft+propulsors will be delivered in full compliance with the call. SUBLIME will provide methodologies, tools and facilities to the European aviation industry, therefore contributing to releasing the full potential of power saving of BLI engines.

Coordinator

UNIVERSITA DEGLI STUDI DI PADOVA
Net EU contribution
€ 25 000,00
Address
VIA 8 FEBBRAIO 2
35122 Padova
Italy

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Region
Nord-Est Veneto Padova
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 25 000,00

Participants (4)