Current density problems when modeling a homogeneous magnet
Hi all,I am modelling superconducting magnet systems with comsol. I had a simple method of getting the right current density in coils using the AC/DC module whereby I calculate the number of turns...
View ArticleCap faces
Hi,I have a geometry that I imported from SolidWorks and am trying to use the cap faces feature, but the defeaturing and repair option is not available to me. I'm not able to attach the file, even...
View ArticleHow can I get a result of current distribution in RF module?
Hello, I am Junseob Kim, MS student of Electrical Engineering in Texas A&M University. I am a beginner of comsol multiphisics and trying to solve a simple problem.When electric wave exp(-jkz) with...
View ArticleSkin effect
Hi, by inserting the frequency domain step into the study, I can not see any skin effect on the current density, what could it be?
View ArticleComsol 5.4 is 7x faster than Comsol 5.3 on our Windows machine
COMSOL 5.4 is 7x faster than 5.3 on our Windows based machine with Intel processors. I benchmarked the two versions with the same simulation.CFD solving Navier stokes compressible flow, chemical...
View ArticleBiological Cell model
Hello Sir/Ma'am,I am trying to give a pulse with amplitude 100v and time 1ns on the cell model that I have designed but the response is not according to epectation as there is no drop in the field from...
View ArticleMultimatrix properties for Darcy and Richards
Hello,I have a 2D cross-section of a subsurface with several layers of different rock-types consisting of differing matrix properties. Is it possible to run a model with these layers having different...
View ArticleModeling Acoustic wave propagation in Solids
Sir. I am working on Acoustic emission monitoring of fatigue cracks. Kindly tell me how to model the following in Comsol.Input: Load applied in the specimen (Solid Mechanics Module) & Output:...
View ArticleIdentity Mapping for thermal boundary condition
Hello; i have two layers structure of different material. and i am studying the heat flow from the first layer to the second one, between them i defined pair thermal contact as i used form assembly...
View Articlelooking for a kind of concrete in Materials Library
Dear software-mates, It is good to know that Materials Library of COMSOL has over 2,650 materials. But I found it difficult to search for the only one material I want, that is the most common kind of...
View Articlerelease point
Hello, can the release of particles in the mix module release particles from the specified coordinate points, and then see the particle's motion trajectory? Sincere thanks! ! Urgent
View ArticleVersion difference
Hello, may I ask which modules in the new version of the diffusion module in comsol3.5a correspond?Sincerely thank you for your answer！
View Article3D scatterplot from parametric study
I'm running an eigenfrequency study as a function of two parameters. I want to create a simple scatterplot, where the x and y axes are the two parameters, and the z axis is the eigenfrequency. This is...
View ArticleTransmission and Reflectance Table Values not updating
Hi,I am doing a simulation where I am looking at the transmission and reflectance values.COMSOL 5.4 will change the graph that shows the transmission and reflectance in graph form based on different...
View ArticleImport Solidworks file to Comsol
Hello, I am trying to import my Solidworks file(.sldprt) into comsol. But its shows file version is not supported. My Solidworks is 2018 version and comsol is 5.3a.Please help me to figure it out as...
View ArticleWeak constraints on air liquid interface
I need you sincere comments and suggissions on the attached mph file. Actually, I am simulating the bubble motion in fluid flow using comsol. I am almost sure that my model is okay, but the problem is...
View ArticleConsistant convergance problem for time dependent problem
Is the inconsisitent convergance effect the results of time dependent simulation. As I am getting variation in result with same boundary condition for time dependent problem.Thanks & Regards Anurag...
View ArticleSurface charge density in electric current physics
Hi all,I am trying to do modelling of a dielectric in electric field to determine its leakage resistance and capacitance. For this I am using electric currents module. Now, i need to give surface...
View Articlegear oil splashing
Hello, I want to study the flow of engine oil inside gearbox. I want to create simple model of oil spashing using comsol of single gear rotating inside half field oil container. Can someone guide me...
View Articlesolder self assembly
Does anyone have experience setting up a Comsol model for solder reflow and self assembly?
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