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Computation of slat noise sources using adaptive FEM and lighthill's analogy
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz).ORCID iD: 0000-0003-4256-0463
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz).ORCID iD: 0000-0002-1695-8809
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz). KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.
2013 (English)In: 19th AIAA/CEAS Aeroacoustics Conference, 2013Conference paper, Published paper (Refereed)
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.

Place, publisher, year, edition, pages
2013.
Keyword [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
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-133366Scopus ID: 2-s2.0-84883709149ISBN: 978-162410213-4 (print)OAI: oai:DiVA.org:kth-133366DiVA: diva2:661664
Conference
19th AIAA/CEAS Aeroacoustics Conference; Berlin; Germany; 27 May 2013 through 29 May 2013
Note

QC 20131104

Available from: 2013-11-04 Created: 2013-10-31 Last updated: 2018-01-11Bibliographically approved

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Hoffman, Johan

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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