Déjà-vu

Develop, finish job assignment, validate, update

The development of a simulationprocess in order to map existing and new technologies. Concepts of General Aviation (GA) and the new Advanced Air Mobility (AAM) are to be analysed.

Project goals

Th Déjà-vu project aims to enable the simulation and assessment of noise for small aircraft. A simulation process is to be further developed in order to be able to map existing and new technologies. Concepts of General Aviation (GA) and the new Advanced Air Mobility (AAM) are to be analysed. The research focuses on the development and implementation of modelling approaches in a superordinate simulation process. In particular, a new AI-based sound source model for distributed, installed propeller drives will be developed and real atmospheric effects in sound propagation will be investigated. The database already set up in the L²INK project with results from acoustic measurements during flyover tests contains all recorded data, in particular flight performance parameters and the measured sound pressure levels and the associated frequency spectra, and will continue to be used in déjà-vu. It enables validation of the simulation results and estimation of the simulation uncertainties.

Contribution to electric aviation

The introduction of new small aircraft technologies often generates uncertainty and skepticism among communities concerned about the potential noise they may cause. The déjà-vu project aims to accurately quantify the local noise impacts aircraft concepts, thereby allaying fears and increasing public acceptance. The new simulation process will enable developers of innovative small aircraft designs to verify their compliance with noise requirements in the early stages of the design process.

Project data

 

Term

01/2025 – 12/2027

Participating institutes

Partner

  • RWTH Aachen University
  • Delft University of Technology

Funding

Institutional funding

More information will follow soon!

Kontakt

Prof. Dr.-Ing. habil. Markus Raffel

German Aerospace Center (DLR)
Institute of Aerodynamics and Flow Technology
Helicopters
Bunsenstraße 10, 37073 Göttingen