m_time_steppers Module Reference

The following module features a variety of time-stepping schemes. Currently, it includes the following Runge-Kutta (RK) algorithms: 1) 1st Order TVD RK 2) 2nd Order TVD RK 3) 3rd Order TVD RK where TVD designates a total-variation-diminishing time-stepper. More...

Functions/Subroutines
impure subroutine	s_initialize_time_steppers_module
	The computation of parameters, the allocation of memory, the association of pointers and/or the execution of any other procedures that are necessary to setup the module.
impure subroutine	s_tvd_rk (t_step, time_avg, nstage)
impure subroutine	s_adaptive_dt_bubble (stage)
	Bubble source part in Strang operator splitting scheme.
impure subroutine	s_compute_dt ()
subroutine	s_apply_bodyforces (q_cons_vf, q_prim_vf_in, rhs_vf_in, ldt)
	This subroutine applies the body forces source term at each Runge-Kutta stage.
subroutine	s_propagate_immersed_boundaries (s)
subroutine	s_time_step_cycling (t_step)
	This subroutine saves the temporary q_prim_vf vector into the q_prim_ts vector that is then used in p_main.
impure subroutine	s_finalize_time_steppers_module
	Module deallocation and/or disassociation procedures.

Variables
type(vector_field), dimension(:), allocatable	q_cons_ts
	Cell-average conservative variables at each time-stage (TS).
type(scalar_field), dimension(:), allocatable	q_prim_vf
	Cell-average primitive variables at the current time-stage.
type(scalar_field), dimension(:), allocatable	rhs_vf
	Cell-average RHS variables at the current time-stage.
type(integer_field), dimension(:, :), allocatable	bc_type
	Boundary condition identifiers.
type(vector_field), dimension(:), allocatable	q_prim_ts1
type(vector_field), dimension(:), allocatable	q_prim_ts2
	Cell-average primitive variables at consecutive TIMESTEPS.
real(wp), dimension(:, :, :, :, :), allocatable	rhs_pb
type(scalar_field)	q_t_sf
	Cell-average temperature variables at the current time-stage.
real(wp), dimension(:, :, :, :, :), allocatable	rhs_mv
real(wp), dimension(:, :, :), allocatable	max_dt
integer, private	num_ts
	Number of time stages in the time-stepping scheme.
integer	stor
	storage index
real(wp), dimension(:, :), allocatable	rk_coef
integer, private	num_probe_ts

Detailed Description

The following module features a variety of time-stepping schemes. Currently, it includes the following Runge-Kutta (RK) algorithms: 1) 1st Order TVD RK 2) 2nd Order TVD RK 3) 3rd Order TVD RK where TVD designates a total-variation-diminishing time-stepper.

Function/Subroutine Documentation

s_adaptive_dt_bubble()

impure subroutine m_time_steppers::s_adaptive_dt_bubble

(

integer, intent(in)

stage

)

Bubble source part in Strang operator splitting scheme.

Parameters

t_step

Current time-step

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s_apply_bodyforces()

subroutine m_time_steppers::s_apply_bodyforces	(	type(scalar_field), dimension(1:sys_size), intent(inout)	q_cons_vf,
		type(scalar_field), dimension(1:sys_size), intent(in)	q_prim_vf_in,
		type(scalar_field), dimension(1:sys_size), intent(inout)	rhs_vf_in,
		real(wp), intent(in)	ldt )

This subroutine applies the body forces source term at each Runge-Kutta stage.

Parameters

[in]

ldt

local dt

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s_compute_dt()

impure subroutine m_time_steppers::s_compute_dt

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s_finalize_time_steppers_module()

impure subroutine m_time_steppers::s_finalize_time_steppers_module

Module deallocation and/or disassociation procedures.

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s_initialize_time_steppers_module()

impure subroutine m_time_steppers::s_initialize_time_steppers_module

The computation of parameters, the allocation of memory, the association of pointers and/or the execution of any other procedures that are necessary to setup the module.

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s_propagate_immersed_boundaries()

subroutine m_time_steppers::s_propagate_immersed_boundaries

(

integer, intent(in)

s

)

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s_time_step_cycling()

subroutine m_time_steppers::s_time_step_cycling

(

integer, intent(in)

t_step

)

This subroutine saves the temporary q_prim_vf vector into the q_prim_ts vector that is then used in p_main.

Parameters

t_step

current time-step

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s_tvd_rk()

impure subroutine m_time_steppers::s_tvd_rk	(	integer, intent(in)	t_step,
		real(wp), intent(inout)	time_avg,
		integer, intent(in)	nstage )

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Variable Documentation

bc_type

type(integer_field), dimension(:, :), allocatable m_time_steppers::bc_type

Boundary condition identifiers.

max_dt

real(wp), dimension(:, :, :), allocatable m_time_steppers::max_dt

num_probe_ts

integer, private m_time_steppers::num_probe_ts

private

num_ts

integer, private m_time_steppers::num_ts

private

Number of time stages in the time-stepping scheme.

q_cons_ts

type(vector_field), dimension(:), allocatable m_time_steppers::q_cons_ts

Cell-average conservative variables at each time-stage (TS).

q_prim_ts1

type(vector_field), dimension(:), allocatable m_time_steppers::q_prim_ts1

q_prim_ts2

type(vector_field), dimension(:), allocatable m_time_steppers::q_prim_ts2

Cell-average primitive variables at consecutive TIMESTEPS.

q_prim_vf

type(scalar_field), dimension(:), allocatable m_time_steppers::q_prim_vf

Cell-average primitive variables at the current time-stage.

q_t_sf

type(scalar_field) m_time_steppers::q_t_sf

Cell-average temperature variables at the current time-stage.

rhs_mv

real(wp), dimension(:, :, :, :, :), allocatable m_time_steppers::rhs_mv

rhs_pb

real(wp), dimension(:, :, :, :, :), allocatable m_time_steppers::rhs_pb

rhs_vf

type(scalar_field), dimension(:), allocatable m_time_steppers::rhs_vf

Cell-average RHS variables at the current time-stage.

rk_coef

real(wp), dimension(:, :), allocatable m_time_steppers::rk_coef

stor

integer m_time_steppers::stor

storage index