heat_residual.c File Reference

#include "adh.h"

Functions
int	heat_residual (SMODEL_SUPER *mod, double *elem_rhs, int ie, double perturbation, int perturb_node, int perturb_var, int perturb_sign, int DEBUG)
	Returns the 2D Heat residual with constant RHS on an element, used for testing. More...

Detailed Description

This file collections functions responsible for the 2D Heat equation with constant RHS, used for testing https://jsdokken.com/dolfinx-tutorial/chapter2/heat_code.html

Function Documentation

heat_residual()

int heat_residual	(	SMODEL_SUPER *	mod,
		double *	elem_rhs,
		int	ie,
		double	perturbation,
		int	perturb_node,
		int	perturb_var,
		int	perturb_sign,
		int	DEBUG
	)

Returns the 2D Heat residual with constant RHS on an element, used for testing.

Author

Mark Loveland, Ph.D.

Bug:

none

Warning

none

Copyright

AdH

Parameters

[in]	mod	(SMODEL_SUPER*) - pointer to SMODEL_SUPER struct
[in,out]	elem_rhs	(double*) - array of doubles that will store elemental residual
[in]	ie	(int) - the elemental id
[in]	pertubation	(double) - the Newton pertubation
[in]	perturb_node	(int) - the node to be pertubed
[in]	perturb_var	(int) - the variable code to be perturbed
[in]	perturb_sign	(int) - the direction of Newton perturbation (-1 or +1)
[in]	DEBUG	(int) - a debug flag

Returns

integer code

Solves the body integals of the following weak, discrete body terms of the 2D Poisson equation: