Specify Mesh Parameters in the PDE Modeler App
Select Parameters from the Mesh menu to open the following dialog box containing mesh generation parameters.
The parameters used by the mesh initialization algorithm are:
Maximum edge size: Largest triangle edge length (approximately). This parameter is optional and must be a real positive number.
Mesh growth rate: The rate at which the mesh size increases away from small parts of the geometry. The value must be between 1 and 2. The default value is 1.3, i.e., the mesh size increases by 30%.
Mesher version: Choose the geometry triangulation algorithm.
R2013ais faster, and can mesh more geometries.
preR2013agives the same mesh as previous toolbox versions.
Jiggle mesh: Toggles automatic jiggling of the initial mesh on/off.
The parameters used by the mesh jiggling algorithm are:
Jiggle mode: Select a jiggle mode from a pop-up menu. Available modes are
optimize minimum, and
onjiggles the mesh once. Using the jiggle mode
optimize minimum, the jiggling process is repeated until the minimum triangle quality stops increasing or until the iteration limit is reached. The same applies for the
optimize meanoption, but it tries to increase the mean triangle quality.
Number of jiggle iterations: Iteration limit for the
optimize meanmodes. Default: 20.
For the mesh refinement algorithm
refinemesh, the Refinement
method can be
The default refinement method is
regular, which results in a uniform
mesh. The refinement method
longest always refines the longest edge on
To initialize a triangular mesh, select Initialize Mesh from the Mesh menu or click the button. To refine a mesh, select Refine Mesh from the Mesh menu or click the button.