Aeroacoustics research in Europe: The CEAS-ASC report on 2020 &amp; 2021 highlights

Nagy, Attila Balázs; Delfs, Jan; Bennett, Gareth J.

doi:10.1016/j.jsv.2022.117002

Cited by 7 publications

(1 citation statement)

References 131 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A ircraft noise has gained substantial research interest in recent years as it is one of the leading environmental concerns [1]. Effective noise control is a challenge that the aviation industry faces.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Grid-Generated Turbulence Interaction with a NACA0012 Airfoil

Trascinelli,

Bowen,

Piccolo

et al. 2023

AIAA AVIATION 2023 Forum

View full text Add to dashboard Cite

The present study assesses the ability to numerically predict turbulence-interaction noise of a NACA0012 airfoil with grid-generated turbulence by utilizing the Lattice Boltzmann solver PowerFLOW. Both the near-field flow characteristics and far field noise are bench-marked against an existing experimental study. The grid was chosen to match that from the experiment to provide evidence that the present numerical approach in physically placing a grid upstream of the airfoil can reproduce the turbulence characteristics observed from the benchmark experiment and thus accurately capture the turbulence-interaction noise generated. The comparison of the results show that the turbulence statistics, including turbulence intensity, integral length scales and anisotropy are highly consistent with the experiment. Moreover, far field acoustics of the turbulence interaction as well as the near-field flow properties near the leading-edge and the unsteady wall pressure fluctuations of the airfoil are also analyzed and the results agreed well with the experimental measurements. The present study confirms that the grid-generated approach is suitable for numerical investigation of turbulence-interaction noise and its potential mitigation strategies.

show abstract

Section: Introductionmentioning

confidence: 99%