shamrock.model_ramses.RiemannSolverMode#

class shamrock.model_ramses.RiemannSolverMode#

Bases: pybind11_object

Gas Riemann solver of the Ramses solver, to be given to cfg.set_riemann_solver.

The values are also exported in shamrock.model_ramses directly.
>>> from shamrock.model_ramses import HLLC_PVRS
>>> cfg.set_riemann_solver(HLLC_PVRS)

Members:

Rusanov
Rusanov (local Lax-Friedrichs) flux.

HLL
Harten-Lax-van Leer flux. This is the default.

HLLC_PVRS
HLLC flux, with wave speeds estimated from the primitive variable Riemann solver (PVRS) star pressure, following Toro (Riemann Solvers and Numerical Methods for Fluid Dynamics, chapter 10).

HLLC_Davis
HLLC flux, using the Davis (1988) wave speed estimate \(s_l = \min(v_l - c_l, v_r - c_r)\), \(s_r = \max(v_l + c_l, v_r + c_r)\).