Project description
Innovative solution based on metamaterials to reduce aviation noise
Civil aviation noise has become a major concern for both the industry and the public, with noise pollution from aircraft engines causing significant disruptions to daily life. Despite the advancements in technology, reducing aircraft noise remains a complex challenge, with conventional noise mitigation techniques offering limited success. With noise reduction targets set by ACARE Flightpath 2050, the need for breakthrough technologies to address this issue has become more pressing than ever before. However, developing innovative noise reduction devices that comply with the latest industry standards for aeroacoustic applications has proven to be a daunting task. It is in this context that the EU-funded AERIALIST project seeks to leverage the potential of metamaterials to tackle this significant challenge.
Objective
AERIALIST aims at the disclosure of the potential of metamaterials to envisage innovative devices for the mitigation of the civil aviation noise. Goal of AERIALIST is to contribute to the identification of breakthrough technologies to achieve the noise reduction targets foreseen by the ACARE Flightpath 2050. AERIALIST fully complies with the envisaged SRIA, aiming at the development of efficient methods for the modelling of metamaterials tailored to aeroacoustic applications and at the conceptual design of innovative devices for aircraft noise mitigation. The focus will be on the reduction of the noise propagating outside turbofan nacelles, exploiting the unconventional properties of acoustic metamaterials to modify noise scattering patterns. Scattering cancellation, hyper-focusing, and noise trapping techniques will be investigated to achieve virtual scarfing of intakes, suitable treatment of outflow ducts and enhancement of shielding effects. As a key enabling factor, efficient and reliable theoretical models and numerical tools will be developed and validated during AERIALIST. Despite the tremendous growth experienced by the research on metamaterials during the last decade, this aspect still deserves a thorough investigation. The AERIALIST activity will lie almost entirely in the TRL range 1-2, with the possible evolution up to level 3 (experimental proof of concepts) of the most promising ideas. In summary, AERIALIST will: i) extend the acoustic metamaterial theory to take into account the effect of realistic aerodynamic flows; ii) develop suitable numerical methods to simulate the behaviour of acoustic metamaterials in aeronautic operating conditions; iii) realize the experimental validation of the most promising concepts; iv) analyse the technical feasibility of noise-reductions devices based on the developed concepts, and propose a roadmap towards their practical realization.
Fields of science
- engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraft
- natural scienceschemical sciencespolymer sciences
- natural sciencesphysical sciencesacoustics
- engineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing
- natural sciencesmathematicsapplied mathematicsnumerical analysis
Programme(s)
Funding Scheme
RIA - Research and Innovation actionCoordinator
00154 Roma
Italy