Provides a tool to set time step dt. More...

Public Member Functions
procedure, pass(this)	init (this, params)
	Initialize object.

procedure, pass(this)	set_dt (this, time, cfl)
	Set time stepping.

Public Attributes
logical	is_variable_dt

real(kind=rp)	cfl_trg

real(kind=rp)	cfl_avg

real(kind=rp)	max_dt

real(kind=rp)	min_dt

integer	max_update_frequency

integer	min_update_frequency

integer	dt_last_change

real(kind=rp)	alpha
	coefficient of running average

real(kind=rp)	max_dt_increase_factor

real(kind=rp)	min_dt_decrease_factor

real(kind=rp)	dev_tol

Detailed Description

Definition at line 44 of file time_step_controller.f90.

Member Function/Subroutine Documentation

◆ init()

procedure, pass(this) time_step_controller::time_step_controller_t::init	(	class(time_step_controller_t), intent(inout)	this,
		type(json_file), intent(inout)	params
	)

Parameters

order order of the interpolation

Definition at line 56 of file time_step_controller.f90.

◆ set_dt()

procedure, pass(this) time_step_controller::time_step_controller_t::set_dt	(	class(time_step_controller_t), intent(inout)	this,
		type(time_state_t), intent(inout)	time,
		real(kind=rp), intent(in)	cfl
	)

Parameters

dt	time step in case_t.
cfl	courant number of current iteration.
tstep	the current time step. @Algorithm: Set the first time step such that cfl is the set one; During time-stepping, adjust dt when cfl_avg is offset by 20%.

Definition at line 58 of file time_step_controller.f90.

Member Data Documentation

◆ alpha

real(kind=rp) time_step_controller::time_step_controller_t::alpha

Definition at line 51 of file time_step_controller.f90.

◆ cfl_avg

real(kind=rp) time_step_controller::time_step_controller_t::cfl_avg

Definition at line 47 of file time_step_controller.f90.

◆ cfl_trg

real(kind=rp) time_step_controller::time_step_controller_t::cfl_trg

Definition at line 46 of file time_step_controller.f90.

◆ dev_tol

real(kind=rp) time_step_controller::time_step_controller_t::dev_tol

Definition at line 53 of file time_step_controller.f90.

◆ dt_last_change

integer time_step_controller::time_step_controller_t::dt_last_change

Definition at line 50 of file time_step_controller.f90.

◆ is_variable_dt

logical time_step_controller::time_step_controller_t::is_variable_dt

Definition at line 45 of file time_step_controller.f90.

◆ max_dt

real(kind=rp) time_step_controller::time_step_controller_t::max_dt

Definition at line 48 of file time_step_controller.f90.

◆ max_dt_increase_factor

real(kind=rp) time_step_controller::time_step_controller_t::max_dt_increase_factor

Definition at line 52 of file time_step_controller.f90.

◆ max_update_frequency

integer time_step_controller::time_step_controller_t::max_update_frequency

Definition at line 49 of file time_step_controller.f90.

◆ min_dt

real(kind=rp) time_step_controller::time_step_controller_t::min_dt