Abstract
We deal with a numerical solution of the compressible Navier-Stokes equations. We employ a combination of the discontinuous Galerkin finite element (DGFE) method for the space semi-discretization and the backward difference formulae (BDF) for the time discretization. Moreover, using a linearization of inviscid as well as viscous fluxes and applying a suitable explicit extrapolation to nonlinear terms, we obtain a numerical scheme which is almost unconditionally stable, has a higher degree of approximation with respect to the space and time coordinates and at each time step requires a solution of a linear algebraic problem. We present this approach and compare several variants of the DGFE techniques applied to a steady flow around the NACA0012 profile.
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© 2008 Springer-Verlag Berlin Heidelberg
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Hozman, J., Dolejší, V. (2008). BDF-DGFE Method for the Compressible Navier-Stokes Equations. In: Kunisch, K., Of, G., Steinbach, O. (eds) Numerical Mathematics and Advanced Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69777-0_39
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DOI: https://doi.org/10.1007/978-3-540-69777-0_39
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69776-3
Online ISBN: 978-3-540-69777-0
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