Using interpolated function to model space dependent material property
The below post is related to an archived discussionHello everyone,as already mentioned in the attached forum discussion, it is possible to use spatial coordinates as arguments. I have used the same...
View ArticleChoosing a Heat Transfer Model
Hi, I'd like to model heat trasfer of the ground considering solar radiation, air temperature, wind speed, theromophyscial properties..ect. I used (Heat transfer in Solids) before, but there is still a...
View ArticleProblem with text file export
Dear community,I've got a 2D surface in a ray optics simulation. I am interested in the intensity distribution over this 2D surface. For this I let Comsol calculate the min, max and the average...
View ArticleAutomatic mesh refinement with Infinite Element Domain?
Hello, when 'Physics controlleld mesh' is enabled in the Magnetic field module, the Infinite element domain is meshed with swept elements. Adaptive mesh refinement is not possible with swept elements,...
View ArticleMaterial error during optimization
Hello every body, at the begining of the optimization, everything is ok and it's running very well. After some iterations, I get this error '' Undefined material property 'mur' required by Magnetic...
View ArticleDiffusive equation for photon migration.
Hi, I'm a new user of COMSOL, and I need some help to create a (simple) model of photon migration through multi-lareyed turbid media (each layer with different absorption, scattering and diffusion...
View ArticleInternal flow-induced vibration of a pipe
The required: Analysis the dynamic behaviour of the pipe (case one: Clamped supports of pipe ends, case two: Simple supports of pipe ends) as a result of flowing a fluid (FIV: FLUID-INDUCED VIBRATION),...
View ArticleCorrect definition of coil features for a stranded conductor with steel core...
Dear COMOL community,I have implemented 3D model of a stranded overhead line conductor with 3 aluminum layers and 1 steel core in COMSOL, as seen on the attached image. Can any of you tell me what the...
View ArticleNew Here: PCB
Hi everyone,I am new to the site and I am looking for more information about PCB prototype designs & variations. Any info would be great!Thanks!Matt
View Articlechanging values
Dear All,could you please help me wiht this issue? I am having problems while changing values of the inputs. The values are rolling bakc to their default ones, as you can see it in the video. I am...
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Optimization constraints
Hello every body, I'm trying to optimize a bunch of parameters (a1,,,,a21). During the optimization, there must be some constraints on these parameters and I have only two: 19.9>= a13 - a20 =>0.1...
View Articledesign of piezoelectric cantilever beam with magnet attached at free end for...
hi, I am trying to design a piezoelectric cantilever beam with magnet attached at free end and another magnet is palced fixed at free end. i am not being able to simulate the structure . i am basically...
View ArticleMaxop point type settings
Hi,I want to do an integration in COMSOL using the maxop operator. I noticed that I can change the point type beween node points, integration points and lagrange points. However, I am not sure I...
View ArticleTransmission spectra of an optical cavity
I have to find the transmission spectra(transmission vs wavelength) of a fabry perot cavity.I am new to comsol and I went through most of the models given in the documentation. I could not find an...
View ArticleEC and MF coupling
The below post is related to an archived discussionI'm trying to couple the physics Magnetic Field and Electric Currents in Comsol to study a time dependent problem. I already done the advise gived by...
View ArticleWhy segregated approach does not work for laminar flow?
Hello,I am trying to simulate laminar flow in simple tube with stationary solver. The default solver is fully coupled and solves pressure and velocity simultaneously. I wanted to check the effect of...
View ArticleWeak Form of a transient heat problem in solid
Hi to everyone. I am writing here because I have created two files, one is built using heat transfer module and the second is built using the weak form module.I do not understand why the results are so...
View ArticleAssigning different materials to a phase.
Hii All,I am using the Mixture model, Laminar flow. I want to assign two different solid materials/particles to the single phase or more precisely to the dispersed phase.Any help is highly appreciated....
View Articlepipe in the soil.
I am trying to model a preinsulated heated burried pipe in comsol.I want to see the stress and strain which is developed surrounding the pipe due to soil movement and tempearture of water. Can anyone...
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