Conférences  >  Physique  >  Acoustique et vibrations  >  Virtuel (en ligne)

Jet noise can be significantly amplified when placed close to a solid surface. This scenario occurs when a jet engine is installed near an aircraft wing. The pursuit of higher propulsion efficiency is achieved as ever by enlarging the engine bypass ratio, leading to an increasing engine diameter. The engine becomes even closer to the wing, leading to significant interactions between them and hence noise amplification. This talk will be focused on providing insight into the noise sources of closely installed jets based on high-fidelity eddy-resolving simulation and its associated data-driven analysis, from canonical to industrially relevant cases. Control strategies are further explored based on understanding noise sources to better reduce noise at the source.