Coupling Acoustic Perturbation Equations and Pierce Wave Equation for Computational Aeroacoustics

Manfred Kaltenbacher (Vortragende:r), Andreas Hüppe, Barbara Wohlmuth, Helmut Kühnelt

Publikation: Beitrag in Buch oder TagungsbandVortrag mit Beitrag in Tagungsband


We present a currently developed approach for computational aeroacoustics (CAA). Thereby, we model the acoustic eld in the region of the main acoustic sources by acoustic perturbation equations (unknowns are the acoustic pressure and particle velocity) and in all other regions by the convective acoustic wave equation according to Pierce (unknown is the acoustic scalar potential). This approach allows us to correctly obtain the acoustic pressure in regions of ow by fully taking into account refraction and convection e ects. The acoustic perturbation equations as well as Pierce equation are solved by the Finite Element (FE) method. To guarantee the physical interface conditions for acoustic waves, we couple the equations along the common interface by a Mortar-FE ansatz. Numerical computations for the NACA 0012 aerofoil demonstrate both the eduction of computational time and the practical applicability of the developed CAA scheme.
TitelProceedings of the 19th AIAA/CEAS Aeroacoustics Conference
PublikationsstatusVeröffentlicht - 2013
Veranstaltung19th AIAA/CEAS Aeroacoustics Conference (2013) -
Dauer: 27 Mai 201329 Mai 2013


Konferenz19th AIAA/CEAS Aeroacoustics Conference (2013)

Research Field

  • Nicht definiert


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