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Concurrent finite element simulation of quadrupolar and dipolar flow noise in low Mach number aeroacoustics

Author
Guasch, O.; Pont-Ribas, A.; Baiges, J.; Codina, R.
Type of activity
Journal article
Journal
Computers and fluids
Date of publication
2016-07
Volume
133
First page
129
Last page
139
DOI
https://doi.org/10.1016/j.compfluid.2016.04.030 Open in new window
Repository
http://hdl.handle.net/2117/99965 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0045793016301402 Open in new window
Abstract
The computation of flow-induced noise at low Mach numbers usually relies on a two-step hybrid methodolgy. In the first step, an incompressible fluid dynamics simulation (CFD) is performed and an acoustic source term is derived from it. The latter becomes the inhomogeneous term for an acoustic wave equation, which is solved in the second step, often resorting to boundary integral formulations. In the presence of rigid bodies, Curie's acoustic analogy is probably the most extended approach. It has...
Citation
Guasch, O., Pont-Ribas, A., Baiges, J., Codina, R. Concurrent finite element simulation of quadrupolar and dipolar flow noise in low Mach number aeroacoustics. "Computers and fluids", Juliol 2016, vol. 133, p. 129-139.
Keywords
Computational aeroacoustics, Diffraction, Dipolar noise, Flow noise, Quadrupolar noise
Group of research
(MC)2 - UPC Computational continuum mechanics
ANiComp - Numerical analysis and scientific computation

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