Large Eddy Simulation of the sound field of a round turbulent jet

被引：10
|
作者：
Boersma, BJ [1 ]
机构：
[1] Lab Aero & Hydrodynam, NL-2628 CD Delft, Netherlands
来源：
THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS | 2005年 / 19卷 / 03期
关键词：
LES; aeroacoustic; jets;
D O I：
10.1007/s00162-004-0107-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper we will use 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 11000. 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 analogy. The coupling between the flow solver and the acoustic solver is discussed in detail. The Mach number used in the acoustic calculation was equal to 0.6. It is shown that the decay of the jet centerline velocity and centerline rms are in good agreement with experimental data of [12]. Furthermore, it is shown that the influence of the LES modeling on the acoustic field is very small, if the dynamic subgrid model is used.
引用
收藏
页码：161 / 170
页数：10
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