Aircraft Engine Studies: Modelling of aircraft sound propagation
Last updated on April 5, 2022
A suite of high-order, time-domain computational aeroacoustic programs have been developed to model sound propagation and radiation from airframe components and aero engine intake and bypass/exhaust ducts. The method is based on multi-block, structured grids and high-order compact schemes and is capable of modelling the effect of liner, bifurcation, etc. Simulations have been performed of noise propagation/radiation problems associated with high lift devices (HLDs), e.g. slats, flaps, spoilers, and both engine intake and bypass ducts. New features are being implemented including efficient computation of broadband noise content for engine applications. New formulations of linearised Euler and acoustic perturbation equations are also being developed.
