1
The Computational Aero-Acoustic Problem
2
Aerodynamics
3
LES Resolution and Cut=offs
4
Smagorinsky Model
5
Kolmogorov Flow
6
Total kinetic energy in the flow domain versus Time
7
x-component of the fluctuating velocity versus Time
8
Noise Sources
9
Lighthill Acoustic Analogy
10
Approximation to Source Spectrum
11
Test Case
12
Three Noise Spectra
13
1550 Degree Jet Case
14
SPL at 3 Microphone Angles
15
Acoustic Wave Propagation
16
Spectral DG Solution
17
The Problem
18
Mesh Topology
19
Mean Square Pressure results