Abstract
The sound field generated by interaction between bodies in arbitrary motion and a subsonic flow is simulated using a computational aeroacoustics time domain method. A three dimensional hybrid method is used for the simulation. The method uses large eddy simulation (LES) to obtain the acoustic sources and the porous Ffowcs-Williams Hawkings (FW-H) analogy to propagate the acoustic waves. The contribution of the present paper is the assessment of the wave propagation method and its capability to be coupled with a CFD solver. An open cavity flow at a Mach number of 0:15 and a Reynolds number of Re = 1500 has been chosen as test case. From the computed flow field quantities , the overall sound pressure level is obtained for different observer positions. Some technical issues are observed in application of the porous FWH approach, when it is studied numerically.
| Original language | English |
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| Title of host publication | Proceedings of Mathematical modeling of wave phenomena |
| Publisher | Mathematical modeling of wave phenomena, 2008, Sweden |
| Publication status | Published - 9 Jun 2008 |
| Event | Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet - Stockholm, Sweden Duration: 21 Sep 2009 → 25 Sep 2009 |
Conference
| Conference | Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet |
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| Country/Territory | Sweden |
| City | Stockholm |
| Period | 21/09/09 → 25/09/09 |
Keywords
- aeroacoustics,
- permeable surfaces
- hybrid approach