Comparison of mesh adaptation techniques for high-speed compressible flow problems : the scramjet testcase for the Euler equations

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dc.contributor.author Becker, R.
dc.contributor.author Gokpi, K.
dc.contributor.author Schall, E.
dc.contributor.author Trujillo, D.
dc.date.accessioned 2014-08-27T07:58:47Z
dc.date.available 2014-08-27T07:58:47Z
dc.date.issued 2011
dc.description.abstract Paper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011. en_US
dc.description.abstract We consider the classical Scramjet test problem for the compressible Euler equations. Our objective is the comparison of different mesh refinement techniques: on the one hand hierarchical refinement of quadrilateral meshes with hanging nodes, on the other hand isotropic and anisotropic triangular meshes. Discretization of the Euler equations written in conservative variables is done by a standard discontinuous finite element (Galerkin) method. In each step of the algorithm, an error indicator is used to guide the mesh modification. Here we implemented as criterion for quadrilateral mesh refinement, indicators based on the physical variables jumps, as they are usually used in practice. Comparison is done with respect to the resolution of certain physical features, and also with respect to CPU-time, which appears to be fair, since the different algorithms are programmed within the same program handling the different ingredients in a uniform manner. For the anisotropic mesh refinement algorithm we use BAMG. All other algorithms have been implemented by the authors in the C++-library Concha. en_US
dc.description.librarian mp2014 en_US
dc.format.extent 8 pages en_US
dc.format.medium PDF en_US
dc.identifier.citation Becker, R, Gokpi, K, Schall, E & Trujillo D 2011, Comparison of mesh adaptation techniques for high-speed compressible flow problems : the scramjet testcase for the Euler equations, Paper presented to the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011. en_US
dc.identifier.uri http://hdl.handle.net/2263/41793
dc.language.iso en en_US
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_US
dc.relation.ispartof HEFAT 2011 en_US
dc.rights University of Pretoria en_US
dc.subject Mesh adaptation techniques en_US
dc.subject Scramjet testcase en_US
dc.subject BAMG en_US
dc.subject Compressible Euler equations en_US
dc.subject Quadrilateral meshes with hanging nodes en_US
dc.subject Isotropic and anisotropic triangular meshes en_US
dc.subject Galerkin method en_US
dc.title Comparison of mesh adaptation techniques for high-speed compressible flow problems : the scramjet testcase for the Euler equations en_US
dc.type Presentation en_US


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