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Computation of slat noise sources using adaptive FEM and lighthill's analogy
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- Hoffman, Johan (author)
- KTH,High Performance Computing and Visualization (HPCViz)
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- Jansson, Johan (author)
- KTH,High Performance Computing and Visualization (HPCViz)
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- Jansson, Niclas, 1983- (author)
- KTH,Parallelldatorcentrum, PDC
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- (creator_code:org_t)
- 2013
- 2013
- English.
- In: 19th AIAA/CEAS Aeroacoustics Conference.
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
Keyword
- 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
Publication and Content Type
- ref (subject category)
- kon (subject category)
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- Royal Institute of Technology
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