B.J. Boersma

In this paper we will use coarse grid Large Eddy Simulation (LES) to obtain the flow field of a turbulent round jet at a Reynolds number based on the jet orifice velocity of 11,000. In the simulations it is assumed that the flow field is incompressible. The acoustic field of the jet is calculated with help of the Lighthill acoustic analogon. The Mach number used in the acoustic calculation was equal to 0.6. It is shown that the centerline decay of the fluid velocity is in good agreement with experimental data of (4]. The acoustic field shows directivity patterns which are also observed in experiments [7],[8].

International Workshop on "LES for Acoustics"; Göttingen; 2002

Conference Paper

englisch

A4, 11 Seiten

DGLR-Bericht, 2002, 2002-03, LES for Acoustics - Proceedings; S.1-11; 2002; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

in getr. Zählung;

aeroacoustics, large eddy simulation

Bibliothek

2002