m_gas Module Reference

Module that stores parameters related to the gas. More...

Functions/Subroutines
subroutine, public	gas_initialize (tree, cfg)
	Initialize this module.
subroutine, public	gas_forward_euler (tree, dt, dt_stiff, dt_lim, time, s_deriv, n_prev, s_prev, w_prev, s_out, i_step, n_steps)
	A forward-Euler method for the Euler equations.
elemental integer function, public	gas_index (name)
	Find index of a gas component, return -1 if not found.

Variables
logical, public, protected	gas_constant_density = .true.
	Whether the gas has a constant density.
logical, public, protected	gas_dynamics = .false.
	Whether the gas dynamics are simulated.
real(dp), public, protected	gas_pressure = 1.0_dp
real(dp), public, protected	gas_temperature = 300.0_dp
real(dp), dimension(:), allocatable, public, protected	gas_fractions
real(dp), dimension(:), allocatable, public, protected	gas_densities
character(len=comp_len), dimension(:), allocatable, public, protected	gas_components
real(dp), public, protected	gas_number_density
real(dp), public, protected	gas_inverse_number_density
real(dp), parameter, public	si_to_townsend = 1e21_dp
real(dp), parameter, public	townsend_to_si = 1e-21_dp
integer, public, protected	i_gas_dens = -1
real(dp), public, protected	gas_molecular_weight = 28.8_dp * UC_atomic_mass
real(dp), public, protected	gas_vt_time = 20e-6_dp
	Vibration-Translation relaxation time (s)
real(dp), public, protected	gas_heating_efficiency = 1.0_dp
real(dp), public, protected	gas_fraction_slow_heating = 0.0_dp
real(dp), public, protected	gas_ehd_factor = 1.0_dp
real(dp), public, protected	gas_euler_gamma = 1.4_dp
integer, parameter, public	n_vars_euler = 2+NDIM
integer, dimension(n_vars_euler), public, protected	gas_vars = -1
integer, dimension(n_vars_euler+1), public, protected	gas_prim_vars = -1
integer, dimension(n_vars_euler), public, protected	gas_fluxes = -1
integer, public, protected	i_vibration_energy = -1
character(len=name_len), dimension(n_vars_euler), public, protected	gas_var_names
integer, parameter, public	i_rho = 1
integer, dimension(ndim), parameter, public	i_mom = [2]
integer, parameter, public	i_e = i_mom(NDIM) + 1

Detailed Description

Module that stores parameters related to the gas.

Function/Subroutine Documentation

gas_forward_euler()

subroutine, public m_gas::gas_forward_euler	(	type(af_t), intent(inout)	tree,
		real(dp), intent(in)	dt,
		real(dp), intent(in)	dt_stiff,
		real(dp), intent(inout)	dt_lim,
		real(dp), intent(in)	time,
		integer, intent(in)	s_deriv,
		integer, intent(in)	n_prev,
		integer, dimension(n_prev), intent(in)	s_prev,
		real(dp), dimension(n_prev), intent(in)	w_prev,
		integer, intent(in)	s_out,
		integer, intent(in)	i_step,
		integer, intent(in)	n_steps )

A forward-Euler method for the Euler equations.

Parameters

[in]	dt	Time step
[in]	dt_stiff	Time step for stiff terms (IMEX)
[in,out]	dt_lim	Computed time step limit
[in]	time	Current time
[in]	s_deriv	State to compute derivatives from
[in]	n_prev	Number of previous states
[in]	s_prev	Previous states
[in]	w_prev	Weights of previous states
[in]	s_out	Output state
[in]	i_step	Step of the integrator
[in]	n_steps	Total number of steps

Definition at line 202 of file m_gas.f90.

gas_index()

elemental integer function, public m_gas::gas_index

(

character(len=*), intent(in)

name

)

Find index of a gas component, return -1 if not found.

Definition at line 284 of file m_gas.f90.

Here is the call graph for this function:

gas_initialize()

subroutine, public m_gas::gas_initialize	(	type(af_t), intent(inout)	tree,
		type(cfg_t), intent(inout)	cfg )

Initialize this module.

Todo

compute gas molecular weight from gas composition

Definition at line 100 of file m_gas.f90.

Variable Documentation

gas_components

character(len=comp_len), dimension(:), allocatable, public, protected m_gas::gas_components

Definition at line 30 of file m_gas.f90.

gas_constant_density

logical, public, protected m_gas::gas_constant_density = .true.

Whether the gas has a constant density.

Definition at line 12 of file m_gas.f90.

gas_densities

real(dp), dimension(:), allocatable, public, protected m_gas::gas_densities

Definition at line 27 of file m_gas.f90.

gas_dynamics

logical, public, protected m_gas::gas_dynamics = .false.

Whether the gas dynamics are simulated.

Definition at line 15 of file m_gas.f90.

gas_ehd_factor

real(dp), public, protected m_gas::gas_ehd_factor = 1.0_dp

Definition at line 60 of file m_gas.f90.

gas_euler_gamma

real(dp), public, protected m_gas::gas_euler_gamma = 1.4_dp

Definition at line 63 of file m_gas.f90.

gas_fluxes

integer, dimension(n_vars_euler), public, protected m_gas::gas_fluxes = -1

Definition at line 74 of file m_gas.f90.

gas_fraction_slow_heating

real(dp), public, protected m_gas::gas_fraction_slow_heating = 0.0_dp

Definition at line 57 of file m_gas.f90.

gas_fractions

real(dp), dimension(:), allocatable, public, protected m_gas::gas_fractions

Definition at line 24 of file m_gas.f90.

gas_heating_efficiency

real(dp), public, protected m_gas::gas_heating_efficiency = 1.0_dp

Definition at line 54 of file m_gas.f90.

gas_inverse_number_density

real(dp), public, protected m_gas::gas_inverse_number_density

Definition at line 36 of file m_gas.f90.

gas_molecular_weight

real(dp), public, protected m_gas::gas_molecular_weight = 28.8_dp * UC_atomic_mass

Definition at line 48 of file m_gas.f90.

gas_number_density

real(dp), public, protected m_gas::gas_number_density

Definition at line 33 of file m_gas.f90.

gas_pressure

real(dp), public, protected m_gas::gas_pressure = 1.0_dp

Definition at line 18 of file m_gas.f90.

gas_prim_vars

integer, dimension(n_vars_euler+1), public, protected m_gas::gas_prim_vars = -1

Definition at line 71 of file m_gas.f90.

gas_temperature

real(dp), public, protected m_gas::gas_temperature = 300.0_dp

Definition at line 21 of file m_gas.f90.

gas_var_names

character(len=name_len), dimension(n_vars_euler), public, protected m_gas::gas_var_names

Definition at line 80 of file m_gas.f90.

gas_vars

integer, dimension(n_vars_euler), public, protected m_gas::gas_vars = -1

Definition at line 69 of file m_gas.f90.

gas_vt_time

real(dp), public, protected m_gas::gas_vt_time = 20e-6_dp

Vibration-Translation relaxation time (s)

Definition at line 51 of file m_gas.f90.

i_e

integer, parameter, public m_gas::i_e = i_mom(NDIM) + 1

Definition at line 91 of file m_gas.f90.

i_gas_dens

integer, public, protected m_gas::i_gas_dens = -1

Definition at line 45 of file m_gas.f90.

i_mom

integer, dimension(ndim), parameter, public m_gas::i_mom = [2]

Definition at line 85 of file m_gas.f90.

i_rho

integer, parameter, public m_gas::i_rho = 1

Definition at line 83 of file m_gas.f90.

i_vibration_energy

integer, public, protected m_gas::i_vibration_energy = -1

Definition at line 77 of file m_gas.f90.

n_vars_euler

integer, parameter, public m_gas::n_vars_euler = 2+NDIM

Definition at line 66 of file m_gas.f90.

si_to_townsend

real(dp), parameter, public m_gas::si_to_townsend = 1e21_dp

Definition at line 39 of file m_gas.f90.

townsend_to_si

real(dp), parameter, public m_gas::townsend_to_si = 1e-21_dp

Definition at line 42 of file m_gas.f90.