parameters Module Reference

Parameters. More...

Variables
real *8	pi
real *8	eps_newton
	threshold for the convergence of the Newton's method More...
real *8	max_dt
	Largest time step allowed. More...
real *8	cfl
	Courant-Friedrichs-Lewy parameter. More...
real *8	reconstr_coeff
	Slope coefficient in the linear reconstruction. More...
logical	interfaces_relaxation
	Flag to add the relaxation terms after the linear reconstruction: . More...
integer	n_cry
	Numbeer of crystal phases. More...
integer	n_gas
	Numbeer of crystal phases. More...
integer	n_vars
	Number of conservative variables. More...
integer	n_eqns
	Number of equations. More...
integer	n_mom
	Number of moments for each crystal phase. More...
integer	idx_p1
	Index of p1 in the qp array. More...
integer	idx_p2
	Index of p2 in the qp array. More...
integer	idx_u1
	Index of u1 in the qp array. More...
integer	idx_u2
	Index of u2 in the qp array. More...
integer	idx_t
	Index of T in the qp array. More...
integer	idx_xd_first
	First index of xd in the qp array. More...
integer	idx_xd_last
	Last index of xd in the qp array. More...
integer	idx_alfa_first
	First index of alfa in the qp array. More...
integer	idx_alfa_last
	Last index of alfa in the qp array. More...
integer	idx_beta_first
	First index of beta in the qp array. More...
integer	idx_beta_last
	Last index of beta in the qp array. More...
integer	idx_mix_mass_eqn
integer	index
integer	of
integer	the
integer	mixture
integer	mass
integer	equation
integer	idx_vol1_eqn
integer	first
integer	phase
integer	volume
integer	idx_mix_mom_eqn
integer	momentum
integer	idx_rel_vel_eqn
integer	relative
integer	velocity
integer	idx_mix_engy_eqn
integer	energy
integer	idx_dis_gas_eqn_first
integer	dis
integer	gas
integer	idx_dis_gas_eqn_last
integer	last
integer	idx_ex_gas_eqn_first
integer	ex
integer	idx_ex_gas_eqn_last
integer	idx_cry_eqn_first
integer	cry
integer	idx_cry_eqn_last
integer	n_nh
integer	n_rk
	Runge-Kutta order. More...
character(len=20)	limiter
	Limiter for the slope in the linear reconstruction: . More...
character(len=20)	solver_scheme
	Finite volume method: . More...
real *8	theta
	Van Leer limiter parameter. More...
real *8	t_start
	initial time for the run More...
real *8	t_end
	end time for the run More...
real *8	t_output
	time of the next output More...
real *8	dt_output
	time interval for the output of the solution More...
real *8, parameter	alfa_impl = 1.0D0
	Parameter for numerical scheme: . More...
integer, parameter	max_nl_iter = 100
	Maximum iterations of the Newthon-Raphson solver. More...
real *8, parameter	eps_thr = 1.D-2
real *8, parameter	tol_abs = 1.D-3
real *8, parameter	tol_rel = 1.D-3
integer	verbose_level
logical	shooting
	Flag for the shooting technique: . More...
logical	moments_flag
	Flag for the crystal moments: . More...
real *8	eps_conv
	Residual for the convergence of the shooting method. The solution is accepted if one of these conditions is satisfied: More...
logical	preconditioning
	Flag for the preconditioning. More...
logical	entropic_prec
	Flag for the preconditioning on conservative or entropic variables. More...
logical	dual_time
	Flag for dual time stepping. More...
integer	max_iter_tau
real *8	dtau_dt_ratio
logical	local_time_step
	Flag for local time stepping. More...
logical	residual_smoothing
logical	complex_step_speed
logical	exact_speed

Detailed Description

Parameters.

Author

Mattia de' Michieli Vitturi This module contains the parameters for numerical solution of the model.

Date

04/02/2017

Variable Documentation

real*8, parameter parameters::alfa_impl = 1.0D0

Parameter for numerical scheme:
.

• alfa_impl = 1.0 => Euler Implicit
• alfa_impl = 0.5 => Crank-Nicolson

Definition at line 91 of file parameters.f90.

real*8 parameters::cfl

Courant-Friedrichs-Lewy parameter.

Definition at line 19 of file parameters.f90.

logical parameters::complex_step_speed

Definition at line 154 of file parameters.f90.

integer parameters::cry

Definition at line 58 of file parameters.f90.

integer parameters::dis

Definition at line 54 of file parameters.f90.

real*8 parameters::dt_output

time interval for the output of the solution

Definition at line 86 of file parameters.f90.

real*8 parameters::dtau_dt_ratio

Definition at line 144 of file parameters.f90.

logical parameters::dual_time

Flag for dual time stepping.

• T => use the dual-time stepping
• F => not use the dual-time stepping

Definition at line 140 of file parameters.f90.

integer parameters::energy

Definition at line 53 of file parameters.f90.

logical parameters::entropic_prec

Flag for the preconditioning on conservative or entropic variables.

• T => entropic variables
• F => conservative variables

Definition at line 134 of file parameters.f90.

real*8 parameters::eps_conv

Residual for the convergence of the shooting method. The solution is accepted if one of these conditions is satisfied:

• ( P_exit - P_out ) / P_out < eps_conv
• ( Mach_exit - 1 ) < eps_conv
• ( Mass_flow_rate_exit - Mass_flow_rate ) < eps_conv

Definition at line 122 of file parameters.f90.

real*8 parameters::eps_newton

threshold for the convergence of the Newton's method

Definition at line 16 of file parameters.f90.

real*8, parameter parameters::eps_thr = 1.D-2

Definition at line 96 of file parameters.f90.

integer parameters::equation

Definition at line 49 of file parameters.f90.

integer parameters::ex

Definition at line 56 of file parameters.f90.

logical parameters::exact_speed

Definition at line 156 of file parameters.f90.

integer parameters::first

Definition at line 50 of file parameters.f90.

integer parameters::gas

Definition at line 54 of file parameters.f90.

integer parameters::idx_alfa_first

First index of alfa in the qp array.

Definition at line 44 of file parameters.f90.

integer parameters::idx_alfa_last

Last index of alfa in the qp array.

Definition at line 45 of file parameters.f90.

integer parameters::idx_beta_first

First index of beta in the qp array.

Definition at line 46 of file parameters.f90.

integer parameters::idx_beta_last

Last index of beta in the qp array.

Definition at line 47 of file parameters.f90.

integer parameters::idx_cry_eqn_first

Definition at line 58 of file parameters.f90.

integer parameters::idx_cry_eqn_last

Definition at line 59 of file parameters.f90.

integer parameters::idx_dis_gas_eqn_first

Definition at line 54 of file parameters.f90.

integer parameters::idx_dis_gas_eqn_last

Definition at line 55 of file parameters.f90.

integer parameters::idx_ex_gas_eqn_first

Definition at line 56 of file parameters.f90.

integer parameters::idx_ex_gas_eqn_last

Definition at line 57 of file parameters.f90.

integer parameters::idx_mix_engy_eqn

Definition at line 53 of file parameters.f90.

integer parameters::idx_mix_mass_eqn

Definition at line 49 of file parameters.f90.

integer parameters::idx_mix_mom_eqn

Definition at line 51 of file parameters.f90.

integer parameters::idx_p1

Index of p1 in the qp array.

Definition at line 37 of file parameters.f90.

integer parameters::idx_p2

Index of p2 in the qp array.

Definition at line 38 of file parameters.f90.

integer parameters::idx_rel_vel_eqn

Definition at line 52 of file parameters.f90.

integer parameters::idx_t

Index of T in the qp array.

Definition at line 41 of file parameters.f90.

integer parameters::idx_u1

Index of u1 in the qp array.

Definition at line 39 of file parameters.f90.

integer parameters::idx_u2

Index of u2 in the qp array.

Definition at line 40 of file parameters.f90.

integer parameters::idx_vol1_eqn

Definition at line 50 of file parameters.f90.

integer parameters::idx_xd_first

First index of xd in the qp array.

Definition at line 42 of file parameters.f90.

integer parameters::idx_xd_last

Last index of xd in the qp array.

Definition at line 43 of file parameters.f90.

integer parameters::index

Definition at line 49 of file parameters.f90.

logical parameters::interfaces_relaxation

Flag to add the relaxation terms after the linear reconstruction:
.

• T => evaluate the relaxation terms
• F => reconstruction without the relaxation

Definition at line 27 of file parameters.f90.

integer parameters::last

Definition at line 55 of file parameters.f90.

character(len=20) parameters::limiter

Limiter for the slope in the linear reconstruction:
.

• 'none' => no limiter (constant value)
• 'minmod' => minmod sloe;
• 'superbee' => superbee limiter (Roe, 1985);
• 'van_leer' => monotonized central-difference limiter (van Leer, 1977)

Definition at line 73 of file parameters.f90.

logical parameters::local_time_step

Flag for local time stepping.

• T => use local time step
• F => use global time step

Definition at line 150 of file parameters.f90.

integer parameters::mass

Definition at line 49 of file parameters.f90.

real*8 parameters::max_dt

Largest time step allowed.

Definition at line 18 of file parameters.f90.

integer parameters::max_iter_tau

Definition at line 142 of file parameters.f90.

integer, parameter parameters::max_nl_iter = 100

Maximum iterations of the Newthon-Raphson solver.

Definition at line 94 of file parameters.f90.

integer parameters::mixture

Definition at line 49 of file parameters.f90.

logical parameters::moments_flag

Flag for the crystal moments:
.

• T => the code solve for crystal moments
• F => the code solve for crystals volume fraction only

Definition at line 113 of file parameters.f90.

integer parameters::momentum

Definition at line 51 of file parameters.f90.

integer parameters::n_cry

Numbeer of crystal phases.

Definition at line 29 of file parameters.f90.

integer parameters::n_eqns

Number of equations.

Definition at line 33 of file parameters.f90.

integer parameters::n_gas

Numbeer of crystal phases.

Definition at line 30 of file parameters.f90.

integer parameters::n_mom

Number of moments for each crystal phase.

Definition at line 35 of file parameters.f90.

integer parameters::n_nh

Definition at line 62 of file parameters.f90.

integer parameters::n_rk

Runge-Kutta order.

Definition at line 65 of file parameters.f90.

integer parameters::n_vars

Number of conservative variables.

Definition at line 32 of file parameters.f90.

integer parameters::of

Definition at line 49 of file parameters.f90.

integer parameters::phase

Definition at line 50 of file parameters.f90.

real*8 parameters::pi

Definition at line 14 of file parameters.f90.

logical parameters::preconditioning

Flag for the preconditioning.

• T => evaluate the preconditioning
• F => not evaluate

Definition at line 128 of file parameters.f90.

real*8 parameters::reconstr_coeff

Slope coefficient in the linear reconstruction.

Definition at line 21 of file parameters.f90.

integer parameters::relative

Definition at line 52 of file parameters.f90.

logical parameters::residual_smoothing

Definition at line 152 of file parameters.f90.

logical parameters::shooting

Flag for the shooting technique:
.

• T => the code search for inlet velociy
• F => the velocity is provided as input

Definition at line 107 of file parameters.f90.

character(len=20) parameters::solver_scheme

Finite volume method:
.

• 'LxF' => lax-friedrichs scheme;
• 'GFORCE ' => gforce scheme;
• 'KT' => Kurganov and Tadmor semidiscrete scheme;

Definition at line 80 of file parameters.f90.

real*8 parameters::t_end

end time for the run

Definition at line 84 of file parameters.f90.

real*8 parameters::t_output

time of the next output

Definition at line 85 of file parameters.f90.

real*8 parameters::t_start

initial time for the run

Definition at line 83 of file parameters.f90.

integer parameters::the

Definition at line 49 of file parameters.f90.

real*8 parameters::theta

Van Leer limiter parameter.

Definition at line 82 of file parameters.f90.

real*8, parameter parameters::tol_abs = 1.D-3

Definition at line 98 of file parameters.f90.

real*8, parameter parameters::tol_rel = 1.D-3

Definition at line 99 of file parameters.f90.

integer parameters::velocity

Definition at line 52 of file parameters.f90.

integer parameters::verbose_level

Definition at line 101 of file parameters.f90.

integer parameters::volume

Definition at line 50 of file parameters.f90.