Question about using multiple processors in Gui mode for "form union" operation
Hi, I am currently working in the RF module on a cluster. Right now, I'm working with a very large geometry (large in that it contains many domains). It is so large that it takes a very long time for...
View ArticleCalculating advective/diffusive fluid flux over a boundary -darcy's law and...
Hello, Currently, I am modeling the transport of diluted species under concentration gradient and pressure differential in the soil which enters the building through foundation cracks. I am using two...
View ArticlePersonalized heat source
Good morning everybody, I am a novice in use of COMSOL, I want to simulate the propagation of heat through a material, sounds easy but my heat source is a surface defined by a matrix (every pixel is a...
View Articleexport animation
I try to export an animation to file. Comsol 4.3a displays the animation and takes time for the writing process but the file is not actually written. What could I do wrong?
View ArticleTime dependent study convergence
Hi, I am trying to model laminar fluid flow, heat transfer in fluids, and mass diffusion simultaneously in comsol using transient solver. The problem is that when I put the upper limit for time 1...
View ArticleDouble beam resonator with electrostatic interaction
Hi all, I'm modeling a structure comprised of two beams (clamped-free), which are facing each other and are totally symmetrical (see image). The beams are made of a stack of several thin films. There...
View ArticleNew to COMSOL. Help with structural analysis.
Hey guys, I have a 2'' hollow tube that is fixed at one end and has a point load at the other end. (think cantilever) What I need is this: I need the radius of curvature to be 3'', so I need to know...
View ArticleDamping factor
can anybody explain what exactly the " Damping factor" in context of COMSOL?
View Articlefunction
Can anyone please help to write the above equation Y=X0*(1+sin*(w*t)) where w=2*pi*f (rad/s), t=argument(s) I have tried with analytical function after defining w in variables and all other constants...
View ArticleMicrochannel
I need to connect an external current source to the electrode used in my model using electric circuit interface.the electrodes are used in Primary current distribution in electro-chemistry module .is...
View ArticleERROR: nonlinear solver did not converge, when simulating ball movement in...
Hi all, I have seen several threads about this error and tried to figure it out myself using the sample cases but I still fail to simulate this. Any help will be greatly appreciated. I am trying to...
View ArticleHelp Needed: Extending Simulation of Magnetic Field (ID:2014) to a time...
Hello, I'm a new Comsol user and would like to ask a practical/technical question regarding one of your demos. The relevant model ID is 2014, Simulation of Magnetic Brake. I tried to extend the model...
View Articleextracting data from comsol to matlab through mphinterp
Hello, I have implemented the mphinterp function but when I want to extract results for different parameters something goes wrong. My typical comsolfiles look something like this: - In the Study...
View ArticleSimulation of a floor heating
Hi all, I want to simulate a floor heating in a 2D modell. Floor heating systems release about 90 % of heat in the form of radiation and about 10 % in the form of convection. So is it possible to take...
View ArticleHow I can add data for a solution to a new study?
I'm working on the simulation of an iron foundry, I made a transient thermal study, and I exported data solution in time 200seg temperatures. I would like to know how I can add the output exported to a...
View ArticleReading Deformation graph
I am getting a coloured graph for deformation in microgripper. Now I want to get the values of deformation at different point(x,y,z) (instead of graph) please let me know how to get that in comsol.
View ArticleData export using Matlab Livelink
I have designed a magnetic coil model in COMSOL and successfully imported it in MATLAB. I am plotting norm of magnetic flux in COMSOL Model. Now I want to extract the magnetic flux data in a MATLAB...
View ArticleCoupled electromagnetics-solid mechanics study
Hi, I'd like to couple an electromagnetical eigenmode study to a forced-response solid mechanics study. More specifically, I want to do the following: 1. Solve electromagnetics model for two eigenmodes...
View Articleinteraction valve-blood
Hi! i've to simulate the interaction between an aortic valve and the blood (i use comsol 3.4). I've a pipe with two leaflets fixed with a hinge. These are what i've imposed: incompressible navier...
View ArticleUnsteady Analysis
Hi, I am solving an Unsteady state problem, in which the time interval is very large, so it takes time to solve it. I interrupted the solution in between cause i saw the time step that i used to...
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