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S. Schoder, C. Junger, M. Weitz, M. Kaltenbacher:
"Conservative source term interpolation for hybrid aeroacoustic computations";
in: "25rd AIAA/CEAS Aeroacoustics conference", AIAA, 2019, ISBN: 978-1-62410-588-3.

The huge disparity of scales in low Mach number aeroacoustics yields the possibility of
applying well suited hybrid simulation models using different meshes for flow and acoustics.
Since these two meshes may be quite different, the fundamental requirement in hybrid com-
putational aeroacoustics (CAA) is an accurate data transfer from the flow to the acoustic grid
in order to minimize interpolation errors. In this paper, we investigate the accuracy of a stan-
dard conservative interpolation scheme compared to the more sophisticated cut-volume cell by
applying the schemes to aeroacoustic computation of an axial fan. Finally, the results of the
acoustics simulations are compared to measurements.

http://dx.doi.org/10.2514/6.2019-2538