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Resolving time-dependent waves

Номер решения: 1118 Область применения: Acoustics Module, COMSOL Multiphysics, MEMS Module, RF Module, Structural Mechanics Module, Wave Optics Module Версии: Все версии

I 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, ...


Setup and Meshing of Infinite Elements, Perfectly Matched Layers, and Absorbing Layers

Номер решения: 1272 Версии: Все версии

I 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

Номер решения: 1270 Версии: Все версии

What 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

Номер решения: 1261 Версии: Все версии

How 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 ...


The usage of Form Union and Form Assembly

Номер решения: 1216 Версии: Все версии

There 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

Номер решения: 1213 Версии: Все версии

The 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

Номер решения: 1207 Область применения: COMSOL Multiphysics Версии: Все версии

The 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

Номер решения: 1208 Область применения: COMSOL Multiphysics Версии: Все версии

The 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

Номер решения: 1210 Область применения: COMSOL Multiphysics Версии: Все версии

The 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

Номер решения: 1209 Область применения: COMSOL Multiphysics Версии: Все версии

The 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 ...


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Learning Center Resources

Learn how to use the COMSOL Multiphysics® software for modeling devices, designs, and processes. Access the Learning Center courses and articles below for modeling guidelines, step-by-step demonstrations, and exercise files.

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