Use a Particle (
) data set, selected from the
More Data Sets submenu, to visualize particle traces computed by a Particle Tracing Module interface. The Particle data set is automatically created when solving a model containing one of the Particle Tracing Module interfaces if the
Generate default plots option is selected in the
Study. Selections can be added to the particle data set, which makes it possible to compute, for example, the number or fraction of particles in a given domain or on a given boundary during results processing. You can visualize the particles using a plot of the particle trajectories in the original dimension, as a Poincaré map, or as a 2D phase portrait.
Select a Solution from the list of solution data. Select a
Particle geometry specification:
Manual (the default) or
From physics interface.
If Manual is selected, the
Particle geometry and
Position-dependent variables text fields become available. In the
Particle geometry field, enter the name of the variable for the particle geometry. This corresponds to the hidden geometry on which the particle degrees of freedom are computed. When the Particle data set is generated from the default plots, the correct name for the particle geometry is filled in automatically. The particle geometry takes the name
pgeom_<id>, where
<id> is the Name for the specific Particle Tracing interface node.
In the Position-dependent variables field, enter the names of the dependent variables for the particles’ position using commas to separate the variables. Like the particle geometry, the names of the particle degrees of freedom are filled in automatically when the particle data set is generated from the default plots. The names correspond to the particle position degrees of freedom with the component name prepended. For example, for a 3D component, with name
comp1 and dependent variables
qx,
qy, and
qz for the physics interface, the correct expression to enter is
comp1.qx,
comp1.qy, and
comp1.qz.
If From physics interface is selected, select the
Physics interface from which the particle geometry and the names of the particle position degrees of freedom are defined. Only physics interfaces that can create a valid particle geometry are shown.
