From CAA to CFD. Issue 1 (25th October 2016)

• Record Type: Journal Article
• Authors: Akkermans, R.A.D.; Bernicke, P.; Ewert, R.; Dierke, J.
• Is Part Of: Proceedings in applied mathematics and mechanics. Volume 16:Issue 1(2016)
• Page Start: 617
• Page End: 618
• Publication Date: 2016-10-25
• Subjects: Applied mathematics -- Periodicals; Engineering mathematics -- Periodicals; Mathematical physics -- Periodicals; 519
• DOI: 10.1002/pamm.201610297
• Languages: English
• ISSNs: 1617-7061

Abstract

Abstract: In this contribution, an application of a computational aeroacoustic code as a hybrid Zonal LES tool is presented. The here used hybrid approach is based on a novel implementation of the Non‐Linear Perturbation Equations extended with fluctuating viscous terms, denoted as "Overset" since a perturbation analysis is performed on top of a background flow. The extension to LES is demonstrated with isotropic decaying turbulence, where the expected temporal decay and scaling of the reference DNS data is recovered with the LES employing a classical Smagorinsky model. Furthermore, a conceptual approach is presented that describes the investigation of sound sources with application to trailing‐edge noise. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)