Air-traffic is expected to increase in the upcoming years. Hence, engineers are challenged to seek for innovative and sustainable strategies that can mitigate the environmental burden brought by the air transport system in future scenarios. Besides CO2 and NOX emissions, noise is the most relevant environmental impact, affecting especially communities living near airport areas.
As a result, the development and introduction of new low-noise aircraft concepts into civil aviation is playing an increasingly important role during aircraft conceptual design. In this context, the development of prediction tools that are capable of providing a reliable prognosis of the environmental noise emissions of novel aircraft technologies is highly desirable.
With a specific focus on the assessment of new aircraft technologies while considering multiple flight events in realistic scenarios, this project is based on a state-of-the-art simulation chain (see Figure). A multi-fidelity approach is employed that couples three different software in order to model noise sources of individual components, incorporate these into the architecture of a whole aircraft and translate into ground noise. The ground noise is then assessed in a large-scale, realistic scenarios using relevant assessment measures.
The main objective of this project is to establish a simulation chain that enables the prediction of the noise levels generated by novel aircraft concepts and flight procedures while considering a representative air traffic scenario, i.e. taking into account a given airport layout, fleet mix, flight trajectories, and individual aircraft noise emissions. Towards this goal, the following tasks are expected:
Prof. Dr.-Ing. Sabine C. Langer
Institute for Acoustics
Tel: +49 531 391-8770
Fax: +49 531 391-8789
Technical University of Braunschweig
Langer kamp 19
38106 Braunschweig, Germany