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Computation of slat noise sources using adaptive FEM and lighthill's analogy
KTH, Skolan för datavetenskap och kommunikation (CSC), High Performance Computing and Visualization (HPCViz).ORCID-id: 0000-0003-4256-0463
KTH, Skolan för datavetenskap och kommunikation (CSC), High Performance Computing and Visualization (HPCViz).ORCID-id: 0000-0002-1695-8809
KTH, Skolan för datavetenskap och kommunikation (CSC), Centra, Parallelldatorcentrum, PDC.ORCID-id: 0000-0002-5020-1631
KTH, Skolan för datavetenskap och kommunikation (CSC), High Performance Computing and Visualization (HPCViz). KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.
2013 (engelsk)Inngår i: 19th AIAA/CEAS Aeroacoustics Conference, 2013Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This is a summary of preliminary results from simulations with the 30P30N high-lift device. We used the General Galerkin finite element method (G2), where no explicit subgrid model is used, and where the computational mesh is adaptively refined with respect to a posteriori error estimates for a quantity of interest. The mesh is fully unstructured and the solutions are time-resolved, which are key ingredients for solving challenging industrial applications in the field of aeroacoustics. We present preliminary results containing time-averaged quantities and snapshots of unsteady quantities, all reasonably agreeing with previous computational efforts. One important finding is that the use of adaptively generated meshes seems to be a more effcient way of computing aeroacoustic sources than by using "handmade" meshes.

sted, utgiver, år, opplag, sider
2013.
Emneord [en]
A-posteriori error estimates, Computational effort, Computational mesh, Galerkin finite element methods, High-lift devices, Quantity of interest, Subgrid model, Time-resolved, Industrial applications, Aeroacoustics
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Identifikatorer
URN: urn:nbn:se:kth:diva-133366Scopus ID: 2-s2.0-84883709149OAI: oai:DiVA.org:kth-133366DiVA, id: diva2:661664
Konferanse
19th AIAA/CEAS Aeroacoustics Conference; Berlin; Germany; 27 May 2013 through 29 May 2013
Merknad

QC 20131104

Tilgjengelig fra: 2013-11-04 Laget: 2013-10-31 Sist oppdatert: 2024-03-18bibliografisk kontrollert

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Hoffman, JohanJansson, JohanJansson, NiclasVilela De Abreu, Rodrigo

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