Pressure-velocity coupling for unsteady low Mach number flow simulations: An improvement of the AUSM+-up scheme

  • Authors:

  • Yann Moguen;Erik Dick;Jan Vierendeels;Pascal Bruel

  • Affiliations:

  • Ghent University, Department of Flow, Heat and Combustion Mechanics, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium;Ghent University, Department of Flow, Heat and Combustion Mechanics, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium;Ghent University, Department of Flow, Heat and Combustion Mechanics, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium;CNRS, Laboratoire de Mathématiques et de leurs Applications and Inria CAGIRE Team, Université de Pau et des Pays de l'Adour, IPRA, Avenue de l'Université, 64013 Pau, France

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2013

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Abstract

The proper scaling of the pressure-velocity coupling that arises from the momentum interpolation approach for unsteady calculation in low Mach number flow is first identified. Then, it is used to suggest a modification of the AUSM^+-up scheme that allows acoustic simulations in low Mach number flow.