A high-order finite volume method for systems of conservation laws-Multi-dimensional Optimal Order Detection (MOOD)

  • Authors:
  • S. Clain;S. Diot;R. Loubère

  • Affiliations:
  • Institut de Mathématiques de Toulouse, Université de Toulouse, France and Departamento de Matemática e Aplicaçíes Campus de Gualtar, 4710-057 Braga Campus de Azurém, ...;Institut de Mathématiques de Toulouse, Université de Toulouse, France;Institut de Mathématiques de Toulouse, Université de Toulouse, France

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2011

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Abstract

In this paper, we investigate an original way to deal with the problems generated by the limitation process of high-order finite volume methods based on polynomial reconstructions. Multi-dimensional Optimal Order Detection (MOOD) breaks away from classical limitations employed in high-order methods. The proposed method consists of detecting problematic situations after each time update of the solution and of reducing the local polynomial degree before recomputing the solution. As multi-dimensional MUSCL methods, the concept is simple and independent of mesh structure. Moreover MOOD is able to take physical constraints such as density and pressure positivity into account through an ''a posteriori'' detection. Numerical results on classical and demanding test cases for advection and Euler system are presented on quadrangular meshes to support the promising potential of this approach.