Abstract The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists
Committee (ASC) supports and promotes the interests of the scientific and industrial …

The capability of boundary element methods (BEM) for solving three-dimensional time
harmonic Helmholtz acoustic scattering problems is presented in the framework of the …

This paper presents a numerical investigation of noise radiated by two side-by-side
propellers, suitable for Distributed-Electric-Propulsion concepts. The focus is on the …

The work proposes a methodology for the assessment of the performances of Passive Noise
Control (PNC) for passenger aircraft headrests with the aim of enhancing acoustic comfort …

Helicopter acoustic scattering can change the acoustic characteristics of the rotor noise and
has an adverse influence on its prediction and control. Previous research has mainly …

This work illustrates the development of passive noise control (PNC) improvements of
aircraft headrests to enhance the acoustic comfort for passengers. Two PNC improvements …

This paper deals with the theoretical–numerical study of integral formulations for the
prediction of noise scattered by moving bodies, through the velocity-potential description of …

The present paper describes a test campaign performed to investigate the noise footprint
emitted by a helicopter in an idealised urban context, reproducing the approach to an …

The scattering of noise generated by helicopter rotors has been recognized as having a
significant influence on both the noise spectra and the noise directivity. This paper presents …

This paper presents the activities in the GARTEUR Action Group HC/AG-24 to study the
noise scattering of helicopter rotors in the presence of the fuselage. The focus of the Action …