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Finite Element Analysis Toolbox
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ex_poisson7.m File Reference

Description

EX_POISSON7 Poisson equation on a unit circle with a point source.

[ FEA, OUT ] = EX_POISSON7( VARARGIN ) Poisson equation on a unit circle with a point source (represented by a point constraint) and exact solution u = -1/(2*pi)*log(r). Accepts the following property/value pairs.

Input       Value/{Default}        Description
-----------------------------------------------------------------------------------
hmax        scalar {0.1}           Max grid cell size (<0 quadrilateral grid)
sfun        string {sflag1}        Shape function
iphys       scalar 0/{1}           Use physics mode to define problem    (=1)
                                   or directly define fea.eqn/bdr fields (=0)
iplot       scalar 0/{1}           Plot solution (=1)
                                                                                  .
Output      Value/(Size)           Description
-----------------------------------------------------------------------------------
fea         struct                 Problem definition struct
out         struct                 Output stuct
Generated fields of fea:
Generated fields of out: