COMSOL Multiphysics™

postplot
TABLE 1-32: PROPERTY GROUPING
PLOT ENTITY 1D 2D 3D PROPERTY NAMES STARTING WITH
Lines Ω ∂Ω ∂ 2 Ω lin
Principal stress/ Ω Ω princ
strain plots
Principal stress/
∂Ω princbnd
strain plots
Slices Ω slice
Particle tracing Ω Ω part
Streamlines Ω Ω flow
3D subdomains Ω tet
Surfaces Ω ∂Ω tri
The symbol ∂Ω indicates the boundary of the domain, and the symbol Ω indicates
the domain itself. For the boundary of the domain, post data evaluated on the
boundary is plotted. For the domain itself, post data evaluated on the domain is
plotted.
Examples
3D Example
Solve the Poisson equation on a unit square:
clear fem
fem.geom = block3;
fem.mesh = meshinit(fem,'hmax',0.15);
fem.equ.c = 1; fem.equ.f = 1;
fem.bnd.h = {1 1 0 0 1 1};
fem.xmesh = meshextend(fem); fem.sol = femstatic(fem);
Plot the solution as a slice plot
postplot(fem,'slicedata','u')
Plot the solution using isosurfaces
postplot(fem,'isodata','u','scenelight','on')
Plot lighted cones showing the gradient together with geometry edges
postplot(fem,'arrowdata',{'ux','uy','uz'},...
'geom','on','camlight','on','arrowtype','cone')
2D Example
Solve the Poisson equation on the unit circle
clear fem
fem.geom = circ2; fem.mesh = meshinit(fem);
366 | CHAPTER 1: COMMAND REFERENCE