COMSOL provides the Discussion Forum for the benefit of our user community to share ideas with each other, and for open discussion on topics that are of interest to the COMSOL Multiphysics user base.

While COMSOL employees may occasionally participate in Discussion Forum discussions, their contributions to a specific topic or technical question may not be as comprehensive as a response to a support request handled through COMSOL's support process.

All of COMSOL's on-subscription customers are welcome to submit their questions via: www.comsol.com/support to be addressed individually by the COMSOL Technical Support Team.

Active Discussions - Definitions and operators

Active discussions  |  Recent messages  |  Start a new discussion

Author Subject Views Replies Last Post
Announcement Announcement *Now Available* COMSOL Multiphysics 5.1 900 4 4 weeks ago
Author Subject Views Replies Last Post
军林 刘 军林 刘 How to build a moving geometry???
4.4 , Geometry , LiveLink products , Definitions and operators , Electrodeposition Module
20 1 1 hour ago
Bastiano Deschmann Bastiano Deschmann Effective porosity in porous media
5 , Earth Science Module , Porous Media , Fluid Flow , Definitions and operators
6 0 1 day ago
Tim B Tim B pick the value at a specific time and parametric sweep
5.1 , 5 , 4.4 , Definitions and operators , Results and visualization , CFD , Fluid Flow , Microfluidics
22 0 2 days ago
Chandima Ekanayake Chandima Ekanayake potential step experiment using Heaviside functions
4.4 , Definitions and operators , Materials and functions
18,546 7 2 days ago
Barzin Rajabloo Barzin Rajabloo Update variable at the end of each timestep
5.1 , LiveLink products , Solving , Definitions and operators
66 1 3 days ago
Francesco Schillaci Francesco Schillaci Simmetry in COMSOL MF
5 , Solving , AC/DC Module , Geometry , Definitions and operators
152 22 3 days ago
Federico Nicodemo Federico Nicodemo lake's hydrodynamic
LiveLink products , Fluid Flow , CFD , Geometry , Definitions and operators
15 0 3 days ago
Diego Romero Diego Romero Selection in Comsol Java API
Geometry , Definitions and operators
11 0 4 days ago
Simone Creo Simone Creo Nonlocal terms
Geometry , Heat Transfer , Application Builder , Solving , Definitions and operators
18 0 4 days ago
Alexander Hartmann Alexander Hartmann Discrepancy in Integration methods (MEF, Frequency Domain, 3D)
Physics , Mesh , AC/DC Module , Definitions and operators
54 2 5 days ago
Syed Zaid Ali Syed Zaid Ali Drift Diffusion and Heavy species transport coupling
LiveLink products , Definitions and operators , Physics , Solving , Results and visualization , CFD , Fluid Flow , AC/DC Module , Chemical Reaction Engineering , Plasma Module , RF Module , 5 , 4.2 , 4.4 , 5.1
497 3 1 week ago
Rong Xu Rong Xu How to Find the Expression of Plastic Strain in Solid Mechanics
4.4 , Definitions and operators , Structural Mechanics , Plastic Strain
63 2 2 weeks ago
雷 李 雷 李 What does operator : mean in COMSOL equations?
Structural Mechanics , Porous Media , Definitions and operators , 5
75 1 2 weeks ago
Ed Frank Ed Frank Using integrals over variables in the model definition
Solving , 5 , Definitions and operators
77 3 2 weeks ago
Martin Gustafsson Martin Gustafsson Integration domains with Join datasets
5 , Integration , Definitions and operators , Join dataset
403 7 2 weeks ago
Kausik  Bal Kausik Bal Post-processing: Calling derived values
Tables , Results , Derived Values , Postprocessing , Heat Transfer Module , Solving , Results and visualization , Definitions and operators
48 0 2 weeks ago
Jean-Philippe Regnard Jean-Philippe Regnard Symmetry boundary condition in eigenfrequency study
Definitions and operators , Geometry , Acoustics Module , 4.4
92 1 2 weeks ago
James Chinn James Chinn Stationary Study and Time Dependent Study of Same Model Disagree
Materials and functions , Definitions and operators , 4.4 , Physics , Solving , Results and visualization , AC/DC Module , Batteries , Fuel Cells , MEMS , Plasma Module
111 0 3 weeks ago
Xujun Zhao Xujun Zhao Does COMSOL support user-defined element like Abaqus does?
Solving , Mesh , Physics , Materials and functions , LiveLink products , Definitions and operators , Geometry
2,174 1 3 weeks ago
Danilo D'Agostino Danilo D'Agostino Importing time dependent Boundary Condition
Structural Mechanics , Definitions and operators
281 6 3 weeks ago
Guillaume Tyson Guillaume Tyson Equation in matrix form for use for MATLAB Livelink
LiveLink products , Solving , Definitions and operators
47 0 3 weeks ago
George Joseph George Joseph Deformed geometry : How to use the coordinates of a boundary in the deformed geometry as a variable?
Weak form , Definitions and operators , Deformed Geometry
51 1 3 weeks ago
Barzin Rajabloo Barzin Rajabloo Stop condition function of solver configurations
Definitions and operators , Solving , Batteries
109 8 4 weeks ago
Max Breitwieser Max Breitwieser Geometry: referring to a function
4.4 , function , Geometry , Definitions and operators
31 0 4 weeks ago
Marty Shipley Marty Shipley Plastic strain and initial strain state
Materials and functions , Definitions and operators , MEMS , Structural Mechanics , 4.3
1,482 2 4 weeks ago

1 2 3 4 5 6 7 8 9 10
Rules and guidelines