Low-Mach consistency of a class of linearly implicit schemes for the compressible Euler equations

• Date: 14. 10. 2021
• Time: 14:00 - 15:30
• Address:
  Sokolovská 83, Praha
• Room: K3
• Speaker: Václav Kučera

The semi-implicit discontinous Galerkin scheme of Feistauer, Dolejší and Kučera works surprisingly well for the computation of low-Mach compressible flows without performing any special modifications of the numerical flux or other 'tricks' deemed necessary by the low-Mach community. This was demonstrated numerically nearly 20 years ago. Now we finally have a theoretical justification in the form of a proof of asymptotic consistency of a more general class of linearly implicit schemes.