The current status of a computational aeroacoustics (CAA) approach to simulate broadband
noise is reviewed. The method rests on the use of steady Reynolds averaged Navier–Stokes …

November, 2008 Anna Schwarz, Johannes Janicka In the last thirty years noise emission
has developed into a topic of increasing importance to society and economy. In? elds such …

Predicting broadband fan noise is key to reduce noise emissions from aircraft and wind
turbines. Complete CFD simulations of broadband fan noise generation remain too …

This article examines Low Pressure Turbine (LPT) noise in modern aircraft and shows how
difficult it is to design a quiet LPT. LPT noise has long been neglected in terms of research …

EROACOUSTIC wind tunnel tests are often conducted in open jet wind tunnels. By placing
the microphones outside the tunnel flow, flow-induced self-noise on the microphones can be …

The scattering of acoustic waves by a moving vortex is studied in two dimensions to bring
further insight into the physical mechanisms responsible for the spectral broadening caused …

The scattering of an acoustic wave by a 3D spatially-developing plane turbulent mixing layer
is investigated by means of a Large Eddy Simulation (LES). First, a plane turbulent mixing …

Noise and emissions are critical technical issues in the development of aircraft engines. This
necessitates the development of accurate models to predict the noise radiated from aero …

As a result of increasing demands for improvements in customer satisfaction and comfort, as
well as stringent regulatory practices [1, 2], noise emission has become an important issue …

The general aim of this thesis is to investigate the suitability of a stochastic method for
computational aeroacoustics, the specific objective being to devise a stochastic method to …