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 …

Within the framework of the Collaborative Research Center 880, future civil transportation
aircraft are investigated. One major aim is a drastic reduction of the noise emission to the …

In a number of institutions and companies, researchers and engineers are developing
modeling numerical frameworks that are used to predict the aerodynamic noise emission …

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 …

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

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 paper compares several approaches for the prediction of the noise emitted by a
NACA0012 airfoil at 0∘ and 4∘ of angle of attack and a Reynolds number R e= 1.5× 10 6 …

The code PIANO, developed at the Institute of Aerodynamics and Flow Technology (Dept.
Technical Acoustics), is designed to simulate aeroacoustic noise generation and acoustic …

In applications, the acoustics of fans can differ significantly from the measurements of the
standalone fan. This is due to disturbed inflow conditions, for example, caused by a heat …

This paper presents an efficient adjoint-based shape optimization framework for airframe
noise reduction in which algorithmic differentiation (AD) is applied to the open-source …