Collaboration diagram for Compressible models options:

Modules
	Homogeneous two-phase compressible model options

	Common

	Enthalpic variables pointers

	Boundary conditions

Data Types
struct	cs_cf_model_t
	Compressible model general options descriptor. More...

Variables
integer(c_int), pointer, save	ieos
	indicator of equation of state mapping cs_cf_model_t::ieos More...

integer(c_int), pointer, save	ithvar
	thermodynamic variables indicator for initialization mapping cs_cf_model_t::ithvar More...

integer(c_int), pointer, save	icfgrp
	indicator for thermodynamic variables initialization More...

integer, dimension(:), allocatable, target	ifbet
	imposed thermal flux indicator at the boundary (some boundary contributions of the total energy eq. have to be cancelled) More...

integer, dimension(:), allocatable, target	icvfli
	boundary convection flux indicator of a Rusanov or an analytical flux (some boundary contributions of the momentum eq. have to be cancelled) More...

real(c_double), pointer, save	psginf
	Stiffened gas limit pressure (Pa) for single phase model Equal to zero in perfect gas mapping cs_cf_model_t::psginf. More...

real(c_double), pointer, save	gammasg
	Stiffened gas polytropic coefficient (dimensionless) for single phase model mapping cs_cf_model_t::gammasg. More...

integer, save	ienerg
	specific total energy for compressible algorithm More...

integer, save	itempk
	temperature deduced from the specific total energy More...

int	ieos

int	ithvar

int	icfgrp

double	psginf

double	gammasg

Detailed Description

\ defgroup compressible Compressible models options

Variable Documentation

◆ gammasg [1/2]

real(c_double), pointer, save gammasg

Stiffened gas polytropic coefficient (dimensionless) for single phase model mapping cs_cf_model_t::gammasg.

◆ gammasg [2/2]

gammasg

stiffened gas polytropic coefficient (dimensionless) for single phase model

◆ icfgrp [1/2]

integer(c_int), pointer, save icfgrp

indicator for thermodynamic variables initialization

◆ icfgrp [2/2]

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):

$\begin{align*} P_p &= 0 & \textrm{if } 1 + \displaystyle\frac{\gamma-1}{2}M<0 \\ P_p &= P_i \left(1 + \displaystyle\frac{\gamma-1}{2}M\right) ^{\frac{2\gamma}{\gamma-1}} & \textrm{otherwise} \end{align*}$

Case of a schock (M > 0):

$\begin{eqnarray*} P_p = P_i \left(1 + \displaystyle\frac{\gamma(\gamma+1)}{4}M^2 +\gamma M \displaystyle\sqrt{1+\displaystyle\frac{(\gamma+1)^2}{16}M^2}\right) \end{eqnarray*}$

with $M = \displaystyle\frac{\vect{u}_i \cdot \vect{n}}{c_i}$ , internal Mach number calculated with the variables taken in the cell.

◆ icvfli

integer, dimension(:), allocatable, target icvfli

boundary convection flux indicator of a Rusanov or an analytical flux (some boundary contributions of the momentum eq. have to be cancelled)

◆ ienerg

integer, save ienerg

specific total energy for compressible algorithm

◆ ieos [1/2]

integer(c_int), pointer, save ieos

indicator of equation of state mapping cs_cf_model_t::ieos

◆ ieos [2/2]

ieos

indicator of equation of state

CS_EOS_IDEAL_GAS: ideal gas with a constant adiabatic coefficient
CS_EOS_STIFFENED_GAS: stiffened gas
CS_EOS_GAS_MIX: mix of ideal gas
CS_EOS_HOMOGENEOUS_TWO_PHASE: two-phase homogeneous model only, each phase follows a stiffened gas law.
CS_EOS_MOIST_AIR: moist air equation of state with condensable (mixture of two ideal gas)

◆ ifbet

integer, dimension(:), allocatable, target ifbet

imposed thermal flux indicator at the boundary (some boundary contributions of the total energy eq. have to be cancelled)

◆ itempk

integer, save itempk

temperature deduced from the specific total energy

◆ ithvar [1/2]

integer(c_int), pointer, save ithvar

thermodynamic variables indicator for initialization mapping cs_cf_model_t::ithvar

◆ ithvar [2/2]

ithvar

indicator for thermodynamic variables initialization

◆ psginf [1/2]

real(c_double), pointer, save psginf

Stiffened gas limit pressure (Pa) for single phase model Equal to zero in perfect gas mapping cs_cf_model_t::psginf.

◆ psginf [2/2]

psginf

stiffened gas limit pressure (zero in perfect gas) for single phase model in Pa

Modules

Data Types

Variables