Cell advection term

Implicit advection schemes of a scalar equation defined on cells. More...

Namespaces
module	mod_apply_cell_advection_scheme
	Set line coefficients of the matrix associated to the discretization of the advection term \( \varrho * \nabla \cdot (\mathbf{u}_{n+1} S_{n+1}) \) with various schemes:

Functions
subroutine	mod_add_cell_advection_div_u_term::add_cell_advection_div_u_term (matrix, coefficient, divergence, stencil_size, equation_ls_map)
	Add to the matrix diagonal the second part of the cell advection term.
subroutine	mod_apply_cell_advection_scheme::apply_flux_scheme_to_system (coefficient, velocity, matrix, equation_stencil, equation_ls_map, apply_cell_advection_scheme)
	Modify the matrix by applying the fluxes to all cells/faces.
subroutine	mod_apply_cell_advection_scheme::apply_cell_advection_houc3_scheme (coefficient, velocity, matrix_line, ns, i, j, k)
	Cell fluxes with HOUC3 reconstruction scheme (wrapper)
subroutine	mod_apply_cell_advection_scheme::apply_cell_advection_generic_reconstruction_scheme (coefficient, velocity, matrix_line, rec_fast_scheme_backward, rec_fast_scheme_forward, ns, i, j, k)
	Generic face flux with reconstruction scheme.

Detailed Description

Implicit advection schemes of a scalar equation defined on cells.

Function Documentation

add_cell_advection_div_u_term()

subroutine mod_add_cell_advection_div_u_term::add_cell_advection_div_u_term	(	double precision, dimension(:), intent(inout)	matrix,
		double precision, dimension(:,:,:), intent(in)	coefficient,
		double precision, dimension(:,:,:), intent(in)	divergence,
		integer, intent(in)	stencil_size,
		type(t_ls_map), intent(in)	equation_ls_map )

Add to the matrix diagonal the second part of the cell advection term.

The term writes \( \varrho S^{n+1} \nabla \cdot \mathbf{u^{n+1}} \). It is usually neglected since velocity field is solenoidal. But it may not be the case up to computer precision in some cases, so this term is kept.