Trailing edge noise reduction using bio-inspired finlets

VB Ananthan, RAD Akkermans - Journal of Sound and Vibration, 2023 - Elsevier
Inspired by the silent flight of the owl, the current work focuses on the reduction of trailing
edge noise using 2D finlets. Overset-Large Eddy Simulations are carried out of two …

Effect of porous material on trailing edge sound sources of a lifting airfoil by zonal overset-LES

VB Ananthan, P Bernicke, RAD Akkermans… - Journal of Sound and …, 2020 - Elsevier
This manuscript reports on the effects of application of porous material on the trailing edge of
a 3D cambered airfoil. The numerical study has been carried out following a zonal Overset …

Trailing-edge noise reduction potential of a locally applied shallow dimpled surface

VB Ananthan, RAD Akkermans, T Hu, PQ Liu… - Journal of Sound and …, 2022 - Elsevier
There is a strong need for airframe noise reduction methods that preserve the aerodynamic
performance of lift-generating airframe components. Inspired by the drag reduction studies …

A zonal noise prediction method for trailing-edge noise with a porous model

P Bernicke, RAD Akkermans, VB Ananthan… - International Journal of …, 2019 - Elsevier
In this contribution, a hybrid zonal simulation tool with volumetric inflow turbulence forcing is
applied to trailing-edge noise of a NACA0012 airfoil with and without a porous insert at …

Hydrodynamic/acoustic splitting approach with flow-acoustic feedback for universal subsonic noise computation

R Ewert, J Kreuzinger - Journal of Computational Physics, 2021 - Elsevier
A generalized approach to decompose the compressible Navier-Stokes equations into an
equivalent set of coupled equations for flow and acoustics is introduced. As a significant …

[HTML][HTML] Aeroacoustics research in Europe: The CEAS-ASC report on 2020 & 2021 highlights

AB Nagy, J Delfs, GJ Bennett - Journal of Sound and Vibration, 2022 - Elsevier
Abstract The Council of European Aerospace Societies (CEAS) Aeroacoustics Specialists
Committee (ASC) supports and promotes the interests of the scientific and industrial …

Zonal overset-LES with stochastic volume forcing

RAD Akkermans, P Bernicke, R Ewert… - International Journal of …, 2018 - Elsevier
In this contribution, a hybrid Zonal LES tool is presented that uses a stochastic volume
forcing for “inflow” turbulence generation. The here used hybrid approach is based on an …

Effects of localized application of porous material on trailing-edge noise of a circulation-controlled wing

VB Ananthan, RAD Akkermans, T Hu, PQ Liu… - International Journal of …, 2023 - Elsevier
This manuscript reports on the effects of localized application of porous material on trailing-
edge noise of a circulation-controlled wing. This circulation-controlled configuration consists …

Influence of wake and background turbulence on predicted fan broadband noise

CA Kissner, S Guérin - AIAA Journal, 2020 - arc.aiaa.org
Next-generation fan designs featuring large bypass ratios have the potential to reduce rotor–
stator interaction noise of fans. However, these designs pose new challenges and long-held …

Aeroacoustic analysis of a circulation-controlled high-lift flap by zonal overset large-eddy simulation

VB Ananthan, P Bernicke, RAD Akkermans - AIAA Journal, 2020 - arc.aiaa.org
Circulation-controlled wings using the Coanda effect over the high-lift device (ie, the flap)
potentially enhance the wing's lift coefficient by delaying or avoiding separation of the …