why changing variables in linear elastic material equations when simulating...
I am a freshman of this software and I just start the first thermal actuator simulation following COMSOL tutorial.There is a step called Linear Elastic Material 1 and some variables are changed as the...
View ArticleActivated charcoal for air purifier model
Good morning, I'm quite new with the software and I just would like to ask: what's the proper module to model an air purifier based on activated charcoal technology?I'd like to have just a 2D model...
View ArticleCombining Wave Optics and Electrostatics in simulations
Hi all,I'm an engineering student trying to model a localized surface plasmon resonance (LSPR) of a metal nano particle (using wave optics) in the influance of a external static electric field.I tried...
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Temperature profile
How do I plot the graph of temperature against time having reading of temperature 1,2 and 3 at 10 seconds intervals
View ArticleAccessing Plot Values from Application Builder
How can I access 2D Far Field Radiation Pattern Plot values from application builder.Or maybe I should ask my question in a more general way: How can I access the values of the plots in the Results...
View ArticleNumber of Nodes changes in a Parametric Sweep
Hello all,I have been working with Comsol 5.3 for over four months now, trying to simulate Magnetic Flux Leakage. I modelled a 250mm by 250 mm steel plate with random ellipsoidal shapes that are...
View ArticleSetting Up a Gaussian or Plane Wave
Hi,I want to set up a Gaussian wave of 10 GHz. I am not quite sure how to do it. Any advice and suggestions will be highly appreciated.I have attached file that how it should look like.ThanksBest,...
View Articlethermal expansion in piezoelectric
Hello, I have a problem with my comsol model. I try to integrate the block thermal expansion in my piezoelectric block, but I have the impression that it does not take into account the variation of...
View ArticlePropagation of blast waves in the air
At present, I already know the maximum overpressure and maximum shock wave generated by the explosion. With regard to the explosion overpressure (pressure field) in the air and the free propagation of...
View ArticleShape factor
Hello, I need help calculating the shape factor of an orthogonal corner between two walls. I've created the geometry and applied concrete as material as well as internal&external temperatures. Do...
View ArticleChange axial pitch of helix
HiI want to define a helix consisting of 2 parts: in the first half the axial pitch is 1 mm and 2 mm in the last half of pitch. How to do this? I have seen a post in few years ago but I cannot...
View ArticleSolving a model takes x8 longer when launched from the MATLAB Livelink than...
Hi there,I'm seeing unusually long solution times when I run my model from the Matlab livelink. From Matlab it takes around 60-100s to obtain a solution in my model. Running the same model in COMSOL...
View ArticlePiezoelectric trimorph
Hello everyone,I am trying to simulate the Piezolelectric trimorph for a displacement, frequency and electric potential sweep but it is not showing me any thing. i am just wondering that if that can be...
View ArticleAssistance on coupling MATLAB script with a COMSOL transport model
Basically, this is my problem: I have two MATLAB programs, program A is able to calculate the concentrations of chemical species by solving a system of non-linear equations, given an initial value of...
View Articleaccess of data of comsol in matlab
Hello,I used the parameteric sweep fot 2 veriables in comsol in eigenfrequency analysis. In Matlab how I can access the field for particular values of the parameteric sweep parameters (for example A =...
View Articlelaser processing simulation
As a comsol multiphysics noob,recently I have been troubled by a problem for several days. I am setting up a model of laser processing ,initiallyt the track of laser I had set is a circle,later...
View ArticleHow do i simulate laser ablation of coatings using COMSOL ?
I want to simulate laser ablation of coatings using nanosecond laser using gaussian heat source. I need to find the ablation depth with varying power and also the temperature profile.
View ArticleWhy do Boundary Probe Point Coordinates change in Results
Hello to all,I have encountered an issue with Boundary Point Probes:I have a code that creates Boundary Point probes (around 100) on a surface at evenly idstributed inervals on the Y direction (X and Z...
View ArticleSolid Domain treated as Fluid Domain [CATIA IMPORT]
The below post is related to an archived discussion[start here]HI, I'm having the same issue as the post above. I imported a geometry from CATIA into comsol, and the solid domain is being treated as a...
View ArticleScattering from anisotropic slab
I am trying to simulate the far-field scattering from a perfectly conducting sphere over a anisotropic dielectric block. I was initially using the impedance boundary condition but realized hte...
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