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)
	Accumulate the finite-difference divergence of a vector field onto a scalar field.
subroutine	s_compute_finite_difference_coefficients (q, s_cc, fd_coeff_s, local_buff_size, fd_number_in, fd_order_in, offset_s)
	Compute the centered finite-difference coefficients for first-order spatial derivatives in the s-coordinate direction (x, y, or z). Supports up to 4th order accuracy.

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 )

Accumulate the finite-difference divergence of a vector field onto a scalar field.

Definition at line 326 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 )

Compute the centered finite-difference coefficients for first-order spatial derivatives in the s-coordinate direction (x, y, or z). Supports up to 4th order accuracy.

Parameters

fd_coeff_s	Finite-diff. coefficients in the s-coordinate direction
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 418 of file m_finite_differences.fpp.f90.