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1 2016

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Implementation of Ffowcs Williams and Hawkings aeroacoustic analogy in OpenFOAM

Jarosz K., Czajka I., Gołaś A.

Vibrations in Physical Systems

2016

Vol. 27

161--168

This paper presents the development of post-processing aeroacoustics utility for OpenFOAM, based on Ffowcs Williams-Hawkings aeroacoustic analogy. Although the FH-W analogy is well known for almost 50 years, there is a lack of open-source software which is using it, hence decision to perform this implementation. This is the veryfirst version of utility, so only one formulation of FH-W were implemented. Presented application allows to compute far-field acoustic pressure from near field CFD solution. Validation is based on NASA Tandem Cylinder Case. Comparison of the results from simulation show fairly good agreement with experimental data.