Abstract
This paper presents a modified Roe scheme for the simulation of multicomponent compressible flows with low Mach features. This modification reduces the excess dissipation of kinetic energy in Godunov-type methods at low Mach. The modification is shown to work effectively to Ma = 0.0002 using a single-mode Kelvin-Helmholtz instability as a test case and reproduces the correct Ma2 incompressible pressure scaling. Computational expense is negligible.
Original language | English |
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Pages (from-to) | 1535-1541 |
Number of pages | 7 |
Journal | International Journal for Numerical Methods in Fluids |
Volume | 56 |
Issue number | 8 |
DOIs | |
Publication status | Published - 20 Mar 2008 |
Externally published | Yes |
Keywords
- Godunov
- Low Mach
- Multicomponent
- Roe
- Upwind