Topics | |
| Homogeneous two-phase compressible model options | |
Data Types | |
| struct | cs_cf_model_t |
| Compressible model general options descriptor. More... | |
Variables | |
| integer, save | ienerg |
| specific total energy for compressible algorithm | |
| integer, save | itempk |
| temperature deduced from the specific total energy | |
| int | ieos |
| int | ithvar |
| int | icfgrp |
| double | psginf |
| double | gammasg |
\ defgroup compressible Compressible models options
| double gammasg |
stiffened gas polytropic coefficient (dimensionless) for single phase model
| int icfgrp |
indicator for hydrostatic balance in boundary conditions
In the cases where gravity is predominant, taking into account the hydrostatic pressure allows to get rid of perturbations which may appear near the horizontal walls when the flow is weakly convective.
Otherwise, when icfgrp=0, the pressure condition is calculated from the solution of the unidimensional Euler equations for a perfect gas near a wall, for the variables "normal velocity", "density" and "pressure":
Case of an expansion (M <= 0):

Case of a schock (M > 0):

with 
| integer, save ienerg |
specific total energy for compressible algorithm
| int ieos |
indicator of equation of state
| integer, save itempk |
temperature deduced from the specific total energy
| int ithvar |
indicator for thermodynamic variables initialization
| double psginf |
stiffened gas limit pressure (zero in perfect gas) for single phase model in Pa