arrhythmia model
I have developed a 2d cardiac model of the heart.I need to simulate an arrhythmia case study. What are the points to be noted?
View ArticleLMSTAT - finding number of licences in use
The below post is related to an archived discussionHi,I've recently tried the advice given in the linked article to find out how many licences are in use on our system but I get this:glnxa64]$ lmstat...
View ArticleHow to execute conditioned interuption of an iteration of simulation using...
Hello, evebody. I am using matlab livelink to sort out the best parameters with genetic algorithm. Surely some sets of parameters are impractical so the COMSOL simulation iteration for such a parameter...
View ArticleHow to calculate the Scattered Cross Section.
Hi everyone,I am trying to calculate the scattering cross section of a silver cylinder. However, the scattering cross section seams to depend on the radius of the integration circle around the cylinder...
View ArticleBrinkman Equations: Maximum number of newton iterations reached!
Hello everyone!I have been trying to model fluid flow through a tube that has a porous media section. I have been using the Brinkman equations module, but I always get the error: Maximum number of...
View ArticleLaser engraving - mesh solution
We are interested to re-create the example visible in the link : https://www.comsol.com/paper/comsol-assisted-simulation-of-laser-engraving-7574 But we do not understand to implement the moving mesh to...
View ArticleI can't plot data from a stopped parametric sweep
I had a parametric sweep running for a long time and wanted to stop it mid-run and see what I have so far. I followed this...
View ArticleQuestions about the thermal stress simulation
Now I am trying to do the thermal stress simulation, but comsol do the thermal and mechanical simulations together. I want to do the thermal and mechanical simulation separately, because the thermal...
View ArticleCouple Ray Optics and Structural mechanics modules
Hello, I have started with the 'Transparent Light Pipe' model in comsol, where the light transmittance can be found for different shapes. However, I would like to see the same effects by stretching the...
View ArticleHow to "Compute" keeping the previous result as it is
Hi everyone.Is it possible to run a new "Compute" without overwriting the results by the previous "Compute"?"Parametric Sweep" seems to give a solution, but at times I need to compute for one...
View ArticleTime-Dependent Micro-mixer
Hi everybodyWhat is the best solver in terms of speed and convergency for a Micro-mixer? (Linear and unlinear, Direct, AMS, and so on) Creeping or Laminar flow and Dilute Transport Species physics have...
View ArticleDegree of Freedom Error in Capacitive Pressure sensor design
Hello everyone, I have just started my PhD and I have no enough background regarding comsol. I am working on Capacitive Pressure sensor. Design is very simple there are two conductors of copper and...
View ArticleWhich version of STP file is supported in CAD import module?
Hi,I exported one single CAD file into STP file using two different protocols: AP203 and AP242. Strangely enough, COMSOL gives me different result for different imported STP files. Now I don't know...
View ArticleComsol Import interactive plots
Dear Users,I am linking Matlab and Comsol and I obtain my 2D plots in Matlab using the well known command: model='mymodel' mphplot(model, 'pg1');The problem is that i am running the simulation again...
View ArticleHow to calculate an element in the mutual capacitance matrix in Comsol
Hi all,By using the electrostatics (es) library, Comsol is able to calculate mutual, inverse Maxwell, and Maxwell capacitance matrices automatically. I have been using Stationary Source Sweep library...
View Articlemissing "plot next""plot previous" etc buttons in plot settings
My problem is pretty self explanitory - the toolbar in the plot settings menu that contains the buttons with "plot next" etc is gone.I can open an archived version of my model and the toolbar is there...
View Articlecan i use specific dopant material for doping in semiconductor?
Hi i am new user of comsol. i am studying about semiconductors by using semiconductor module. i want to do p-type and n-type doping in semiconductor by controlling dopant material. can anyone tell me...
View ArticleModelling Hysteresis in a Piezo Material
Hi, I am trying to model hysteresis in a piezo material (PZT-5H) by giving a ramp voltage from 0-100 V and then 100-0 V. I am using the time domain study for 2 milli secs, in which the voltage...
View ArticleComputing the strain energy on each element of the finite element in Comsol
I can compute the strain energy density on the nodes of the finite element (Ws) and the unit is J/m^3. But I need the strain energy on each element of the finite element. Please, how can I generate the...
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Calculating AC capacitance between multi-electrodes
Hi, I am very new to comsol. As depicted in title, my problem is related to calculating capacitance (AC signal condition) between electrodes. Please refer the below figure for clarity.figure linkThe...
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