Mesh
Setup and Meshing of Infinite Elements, Perfectly Matched Layers, and Absorbing Layers
Solution Number: 1272 Versions: All versionsI am setting up a model where I want to include a region of infinite extent. How should such situations be modeled and meshed? #Overview There are three options for modeling a domain that is meant to represent a ...
Understanding, and changing, the element order
Solution Number: 1270 Versions: All versionsWhat is the meaning of element order, or discretization, and how do I change it? What affect does it have on the mesh and the solution? Why does the mesh look like it has straight sides even with higher-order ...
Performing a Mesh Refinement Study
Solution Number: 1261 Versions: All versionsHow do I gain confidence in the accuracy of the solution to my problem? How do I perform a mesh refinement study? All of the numerical methods used within COMSOL Multiphysics® discretize the modeling space via a Mesh ...
Resolving time-dependent waves
Solution Number: 1118 Applies to: COMSOL Multiphysics, RF Module, MEMS Module, Structural Mechanics Module, Acoustics Module, Wave Optics Module Versions: All versionsI am solving a time-dependent wave-type problem, what mesh and solver settings should I adjust for better accuracy and runtimes? The accuracy of a time-dependent model solving for electromagnetic, acoustic, ...
The usage of Form Union and Form Assembly
Solution Number: 1216 Versions: All versionsThere is an option to Form Union or Form Assembly at the end of the Geometry sequence. What does this mean and when should I switch between them? The Geometry branch within the Model Builder consists of a sequence of ...
Manually setup the geometric multigrid solver
Solution Number: 1213 Versions: All versionsThe geometric multigrid solver accelerates the convergence of the iterative solver by solving the finite element problem on a series of meshes rather than a single one. The multigrid algorithm starts with the initial ...
Failed to respect edge element on geometry edge
Solution Number: 1207 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Failed to respect edge element on geometry edge" occurs. First, due to continual improvements in meshing, make sure to use the latest version of COMSOL Multiphysics: Product Download The mesh generator ...
Failed to respect boundary element on geometry face
Solution Number: 1208 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Failed to respect boundary element on geometry face" occurs. First, due to continual improvements in meshing, make sure to use the latest version of COMSOL Multiphysics: Product Download The mesh generator ...
Failed to create boundary layer mesh for domains
Solution Number: 1210 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Failed to create boundary layer mesh for domains" occurs. First, due to continual improvements in meshing, make sure to use the latest version of COMSOL Multiphysics: Product Download The mesh generator was ...
Failed to create boundary layer mesh
Solution Number: 1209 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Failed to create boundary layer mesh" occurs. First, due to continual improvements in meshing, make sure to use the latest version of COMSOL Multiphysics: Product Download The mesh generator was not able to ...