This paper concerns a high fidelity computational approach for the prediction of the acoustic impact of a VTOL vehicle operating in a urban area. The aerodynamic problem is solved with a free-wake vortex lattice boundary element method whereas the challenging acoustic scattering problem by a large urban area is carried out by coupling a Ffowcs Williams and Hawkings approach (FW-H) with a Boundary Element Method (BEM), accelerated with an Adaptive black-box Fast Multipole Method (AbbFMM). This work also demonstrates the set-up of a comprehensive numerical chain for assessing the noise of vertical take-off and landing (VTOL) vehicle during their whole operations meanwhile producing highly accurate noise shielding predictions when they are approaching in proximity of the urban areas.(c) 2021 Elsevier Masson SAS. All rights reserved.
展开▼
