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View ArticleReversing the axis plot
Hi,I am trying to plot a graph where one of my axis value ranges from 80 to 210. I would like to reverse the numbers and start from 210, in other words reverse the axis. Does any one know how to...
View ArticleGetting the surface from a domain programmatically inside livelink
I am trying to use a coding approach, for varying models etc, to building my simulation. When it comes to exporting results I want to export values of data on a surface.So I have a domain and I want to...
View ArticleAn optical fiber coupling to a waveguide
Hello, I would like to simulate the coupling between an optical fiber and LiNbO3 waveguide. Is the Beam Envelope Method a useful tool for this problem? In particular, can it manage the discontinuity of...
View ArticleConvergence criteria of the segregated solver are met but not all conditions...
Hi,I have constantly encounter a message like this:Convergence criteria of the segregated solver are met but not all conditions for group Heat transfer are fulfilled.Convergence criteria of the...
View ArticleSeparate Studies in 5.5 Results in Undefined Variable Error
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View ArticleWhat is the difference between full field and scattered field?
As stated in the title, I was just wondering what the difference between Full Field and Scattered Field in the RF moduale is?
View Articlehow to export the time steps taken by the solver to MATLAB?
I'm using the COMSOL LiveLink with MATLAB. When I solve time dependent problems and I let the solver choose the time steps (i.e. I only specify the start and end time), I can retrieve the solution in...
View ArticleArea Calculation in a results graph
Hi,I want to calculate the ratio of blue area over the red area. How is it possible to get the surface area of this kind of plots from results.Thanks in advance, Reza
View Articlelaser diode design by comsol
I want to design laser diode using 3d or 2d structure. as i cant find a specific example so if anybody working share with me. using semiconductor module.
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AC purturbation on top of a DC voltage
Please see the attached MPH file for drawing.How to excite a slab with an AC perturbation voltage on top of a DC bias voltage in COMSOL? Let's say I have a slab, I want to apply voltage on both ends...
View ArticleSimulation Zinc-Air battery
Hi everyone!I'm currently working on Zinc-Air battery and I'm wondering what kind of pakage is more convinient to adopt. Is it the battery with binary electrolyte a good solution? I'm a new user so any...
View ArticleHow to Ignore Livelink Licensing Error
Hello,I'm using livelink with matlab to run simulations which involve opening a model. The issue I run into is that when the CAD Import licenses are used up, which my script does not require, COMSOL...
View ArticleMatlab giving Comsol initial values
The below post is related to an archived discussionHello everybodyI have an issue that doesn't seem to be resolved, would be great if you can help me:What I want to do:I use ComSol with Matlab...
View ArticleThe process of forming a weld pool during laser welding
Good day,I would like to ask for your help.I am developing a model for the formation of a weld pool and, to regret, has reached a dead end. I know that the topic is not new and there are a number of...
View ArticleElectromagnetic heating in a 2D axissymmetric AC model
Hello,I am currently working on a project to simulate the electric field behaviour at different temperatures. The application is shown in the attached image. I already simulated it in DC with the...
View ArticleFSI vs Acoustic-stucture interaction
I try to understand the difference between FSI and acoustic-structure interaction (including thermoviscous acoustics and pressure acoustics).After exploring some blogs articles and examples, I have an...
View Articledefiniing an elastic modulus that depends upon location in axisymmetric problem
If you check the 1st attached image, it shows a multilayered portion of a circular "shell". In the middle layer (shaded in blue), I want to define a gradient in modulus such that the modulus decreases...
View ArticlentfluxInt - kinks in plot
I want to simulate a block of aluminum that has a certain temperature and radiates to an empty space. So I set up a COMSOL simulation:Physics: heat transfer in solids, time dependentI created a simple...
View ArticleHow can I customize piezoelectric materials correctly？？
Hello，everyone， Genius and wisdom. Recently, piezoelectric materials have been customized, but the non-convergence and inconsistency of initial value are occured in the simulation model. Then I...
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