Data From A Cut Line With MATLAB Livelink
The below post is related to an archived discussionHello,I am having a similar experience as Pierre Guilleme (linked above), but with an acoustics model. I wish to export the imaginary component of...
View ArticlePlotting / Viewing Predefined Physics Variable Reflection Coefficients
Hello world,I haven't been able to evaluate the predefined physics variable for the Fresnel reflection coefficient gop.matd1.rpf or gop.matd1.rpr in an Evaluation Group in the Results node of my model....
View ArticleCreeping, dilute, surface reacting flow - Negative concentration fixes?
Hi all, new to COMSOLI'm modeling creeping flow and transport of dilute species through a series of ribs, with an electrochemical reaction occuring at 10 mA/sqcm on the bottom surface of the under-rib...
View ArticleComsol
I need to create 3 different media in 2D comsol, and I need to learn how to center an environment the source coordinate, how do you find the expression?
View ArticleFrequency Selective Surface, Complementary Split Ring Resonator
Hi, I have a problem figuring out where can i find c1 which is being stated by no 2. please help. 1 On the Work Plane toolbar, click Booleans and Partitions and choose Difference. 2 Select the object...
View ArticleHow can I access explicit selections after solving?
The below post is related to an archived discussion[start here]The above question was perfectly asked, and I'm disappointed that it hasn't been answered. It'd be really nice to use previously defined...
View ArticleFrequency Selective Surface, Complementary Split Ring Resonator
How to do the italized below? there should be a rigorous step before going to perfect electric conductor E L E C T ROMA G N E T I C WAVE S , F RE Q U E N C Y D O M A IN ( EMW) Set up the physics....
View ArticleError at the end
hello... I am using aluminium alloy 6061 and having an error which asks for values of complaince matrix, coupling matrix and relative permitivity as shown in pic . can any one help please..!!
View ArticleMeasuring Stress at any surface in the structure.
Hi, I was performing an unaxial tensile loading on a cylindrical element of copper with one face fixed and the other moved by a prescribed displacement. After computing the study (using auxiliary...
View ArticleMost common heat transfer problem
Hi,I am trying to simulate the temperature distribution in a regular plug flow reactor. For that, I defined a 2D-axisymmetric dimention where you have a simple geometry for half of a tube where the...
View Articlefixed interval size in 1D meshing
Hi, I wonder if it is possible to use a fixed size for subintervals when doing 1D meshing. So if the given mesh size is 0.1m, then a line of length 1m would always be divided into 10 subintervals, each...
View ArticlePiezoelectric energy harvester
Hi I am doing a unimorph piezoelectric energy harvester with a titanium proof mass. The cantilever is rectangular in shape and I have used PVDF as the piezoelectric material with a stainless steel...
View ArticleHow to activate 'geometric nonlinearity' in a transient study in COMSOL...
Hello everyone,I'm trying to run a simulation using the livelink with MATLAB, but I'm having a problem. The thing is, I don't know how to write a code that activates the 'Include geometric...
View ArticleSetting heat inflow for internal boundary
I have a geometry where a fluid flowing in an interior domain cools the larger (parent, porous medium) domain. My question is how to set one of the boundaries of interior domain to have heat inflow and...
View ArticleAdhesion between two layers
Hi,I am interested in studying the adhesion between two layers. There is also a Link for it: https://www.comsol.com/blogs/how-to-model-adhesion-and-decohesion-in-comsol-multiphysics/But I cannot find...
View ArticleHow to model a beam of light in COMSOL software?
I am using scattering boundary condition to make a EM source and the kdir I have given along X direction (i.e. -ewfd.nx). It is working when the geometry size is few micrometer. But when I am making...
View ArticleCretaing a 3D tree using livelink feature- Comsol with MATLAB
Hai, I am working with a case where I have a generate a 3D tree in iteration of MATLAB loop. I created a 3d geometry and based on the some electrical parameters in the geometry, the next location of...
View ArticlePowder compression in a die with two punch
Hello evrybody, I very need help to modelize the compaction of powder (pharmaceutical) on comsol. I try to do it, but i got always the error message. Somebody can send me a tutorial? My principal...
View ArticleFluid module
I want to look at how the height of the water in the cup changes as the water in the cup moves horizontally what should I do Please give directions
View ArticleEnergy from planetary spin (Earth)
I WANT SIMULATION HELP FOR MY EXPERIMENT TO PROCEED WITH THE DESIGN .
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