Example 13921: Laplace's equation, linear elements

This is an example of a Laplace's equation solved on a graded mesh using hanging nodes. Also in this directory is the same problem solved on the course mesh (before local refinement, course.com) and on a fine mesh (uniform refinement, fine.com).

The comfile run by this example is as follows:

fem
fem define parameters;r;graded;example

fem define coordinates;r;graded;example
fem define nodes;r;graded;example
fem define base;r;graded;example
fem define elements;r;graded;example
fem define window
fem draw lines
fem draw nodes
fem define equation;r;graded;example
fem define material;r;graded;example
fem define initial;r;graded;example
fem define solve;r;graded;example
fem solve
fem draw field
fem draw lines
fem draw nodes
fem

Files used by this example are:

Name               Modified     Size

example_13921.com  20-Nov-2001  439 
course.com         10-Apr-2000  303 
course.ipbase      10-Apr-2000  1.1k
course.ipelem      10-Apr-2000  1.1k
course.ipequa      26-May-2003  1.2k
course.ipinit      10-Apr-2000  548 
course.ipmate      10-Apr-2000   54 
course.ipnode      10-Apr-2000  1.4k
course.ipsolv      15-Apr-2007  1.1k
fine.com           10-Apr-2000  290 
fine.ipbase        10-Apr-2000  1.1k
fine.ipelem        10-Apr-2000  4.3k
fine.ipequa        26-May-2003  1.3k
fine.ipinit        10-Apr-2000  564 
fine.ipmate        10-Apr-2000   54 
fine.ipmesh        10-Apr-2000  829 
fine.ipnode        10-Apr-2000  4.2k
fine.ipsolv        15-Apr-2007  1.1k
graded.ipbase      10-Apr-2000  1.1k
graded.ipcoor      10-Apr-2000  976 
graded.ipelem      10-Apr-2000  1.9k
graded.ipequa      26-May-2003  1.2k
graded.ipinit      15-Feb-2001  704 
graded.ipmate      10-Apr-2000   54 
graded.ipnode      10-Apr-2000  2.0k
graded.ippara      12-Nov-2002  5.9k
graded.ipsolv      15-Apr-2007  1.1k
readme             10-Apr-2000  175 
test_output        10-Apr-2000   23 

Download the entire example:

Name                                 Modified     Size

examples_1_13_139_1392_13921.tar.gz  16-Apr-2007  245k

Graphical output from this problem is given here.

Html last generated: Sun Mar 6 05:50:06 2016

Input last modified: Sun Apr 15 11:58:20 2007