m_finite_differences Module Reference

Finite difference operators for computing divergence of velocity fields. More...

Functions/Subroutines
subroutine	s_compute_fd_divergence (div, fields, ix_s, iy_s, iz_s)
subroutine	s_compute_finite_difference_coefficients (q, s_cc, fd_coeff_s, local_buff_size, fd_number_in, fd_order_in, offset_s)
	The purpose of this subroutine is to compute the finite- difference coefficients for the centered schemes utilized in computations of first order spatial derivatives in the s-coordinate direction. The s-coordinate direction refers to the x-, y- or z-coordinate direction, depending on the subroutine's inputs. Note that coefficients of up to 4th order accuracy are available.

Detailed Description

Finite difference operators for computing divergence of velocity fields.

Function/Subroutine Documentation

s_compute_fd_divergence()

subroutine m_finite_differences::s_compute_fd_divergence	(	type(scalar_field), intent(inout)	div,
		type(scalar_field), dimension(1:3), intent(in)	fields,
		type(int_bounds_info), intent(in)	ix_s,
		type(int_bounds_info), intent(in)	iy_s,
		type(int_bounds_info), intent(in)	iz_s )

Definition at line 302 of file m_finite_differences.fpp.f90.

s_compute_finite_difference_coefficients()

subroutine m_finite_differences::s_compute_finite_difference_coefficients	(	integer, intent(in)	q,
		real(wp), dimension(-local_buff_size:q + local_buff_size), intent(in)	s_cc,
		real(wp), dimension(:, :), intent(inout), allocatable	fd_coeff_s,
		integer, intent(in)	local_buff_size,
		integer, intent(in)	fd_number_in,
		integer, intent(in)	fd_order_in,
		type(int_bounds_info), intent(in), optional	offset_s )

The purpose of this subroutine is to compute the finite- difference coefficients for the centered schemes utilized in computations of first order spatial derivatives in the s-coordinate direction. The s-coordinate direction refers to the x-, y- or z-coordinate direction, depending on the subroutine's inputs. Note that coefficients of up to 4th order accuracy are available.

Parameters

q	Number of cells in the s-coordinate direction
s_cc	Locations of the cell-centers in the s-coordinate direction
fd_coeff_s	Finite-diff. coefficients in the s-coordinate direction
local_buff_size	Size of the local buffer
fd_number_in	Finite-difference number
fd_order_in	Finite-difference order of accuracy
offset_s	Optional offset bounds in the s-coordinate direction

Definition at line 406 of file m_finite_differences.fpp.f90.