2009, English, Article edition: Application of Discontinuous Galerkin spectral method on hexahedral elements for aeroacoustic Castel, Nicolas; Cohen, Gary; Durufle, Marc

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Bookmark: http://trove.nla.gov.au/version/208624
Physical Description
  • text
Published
  • HAL - CCSD
  • 2009
Language
  • English

Edition details

Title
  • Application of Discontinuous Galerkin spectral method on hexahedral elements for aeroacoustic
Author
  • Castel, Nicolas
  • Cohen, Gary
  • Durufle, Marc
Published
  • HAL - CCSD
  • 2009
Physical Description
  • text
Subjects
Notes
  • A discontinuous Galerkin method is developed for linear hyperbolic systems on general hexahedral meshes. The use of hexahedral elements and tensorized quadrature formulas to evaluate the integrals leads to an efficient matrix-vector product. It is shown for high order approximations, the reduction in computational time can be very important, compared to tetrahedral elements. Two choices of quadrature points are considered, the Gauss points or Gauss-Lobatto points. The method is applied to the aeroacoustic system (simplified Linearized Euler Equations). Some 3-D numericals experiments show the importance of penalization, and the advantage of using high order.
  • HAL:hal-00403787, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00403787/​en/​
Language
  • English
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