Select the surface as domain in physics.
Hello everyone, I created in workplane the plane geometry from parameters (which I've measured before from real object). Next I revolved it to create 3D Object. Now, I am trying to select my new object...
View ArticleError fatigue study
I' runing a fatigue study , I have this error in coputing wich I can't sove:Syntax error during element representation. - Name: elfatigue Size of stress must equal number of nstressvars Error in...
View ArticleInduction Heating Multiphysics & Thermal Expansion / Stress - Is This Possible?
I know Comsol can be used to simulate induction heating of a metal, but can I also simulate the thermal expansion and stresses as the metal heats up via a frequency-transient study? I would also be...
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Arnoldi iterations error
Hi, I am running a photonic crystal simulation in COMSOL. The goal of the simulation is to find the eigen frequencies at different possible K vector (vector defining the floquet periodicity in my...
View ArticleRequest a username and password for comsol 5.3
Request a username and password for comsol 5.3
View ArticleHow to manage PC's memory when I compute the solution?
I have a problem in comsol when I was computing the solution, it has an eror "out of memory during assembly". What should I do to fix this problem?
View ArticleSurface plot in livelink in Matlab
Please, find my attached model and its matlab code. I imported text data (comcom.txt) as a table into Comsol. I did the surface plot in comsol. Then I generated the matlab code and try to get the...
View ArticleIssues at connecting one coarser mesh and an extremely thin mesh
Hi everyone,Here is my problem, I got a really thin (1mm) frame (and 1.5mx0.5m) inside a big box (2mx2mx1m) and I want to have an extremelly fine mesh in the frame and a coarser one outside. Inside the...
View Articleideas for continuous drying of polymer dispersion.
Hi, I'm trying to simulate a drying process of a continues carrier wetted with a polymer dispersion that is being dried with convective heating. (like a painted surface that is being dried)I'd like to...
View ArticleIs it possible to have a symmetry along pipes when using Pipe Flow Module?
Hi all, I'm making a model of u-tube inside a cylinder by using Pipe Flow Module. The model is symmetric along the cylinder and tube length, but I could not make the symmtry BC to include the pipe...
View ArticleModelling nano particles in RFA of hepatic tumour
I am new to comsol. Facing problem to model nano particles in biotissue. Can anybody please tell me the approach to solve this problem.
View ArticleChanges in piezoelectric material parameters
Hello everyone, I am doing a simulation of piezoelectric materials. I want to know if the cutting angle of the piezoelectric material is set in the rotating coordinate system in COMSOL, will the...
View ArticleWhat is the differance between solving using modes and solving using input beam?
Hello, I have created 2D simulation of directional coupler, and I excite it using a beam from an input port. I know that in case of solving the problem using mode analisys - I am sepposed to get...
View ArticleHow to prescribe displacement amplitude
Hi allIs it possible to prescribe the displacement amplitude of a boundary in XYZ coordinate? For instance, in the attached file I try to change the amplitude by scaling the "Prescribed in y direction"...
View ArticleSolving coefficient form of PDE and laminar flow for a heat transfer problem
Hi everyone,I am trying to solve a multiphysics problem in a complicated 3D domain of fluid and and solid medium. Governing equations, solved for are Continuty, Momentum and a Modified Energy equation....
View ArticleCombustion of Rocket Propellant
I want to do combustion simulations of sandwich solid propellant. Previoulsy simulations are done in ANSYS Fluent, but for COMSOL I am wondering where to start. Can any one help me in this regard.
View ArticleInsolation analysis and temperature profile
Hi all, I'm new on this forum and I'm trying to figure out if COMSOL can help me in the study I'm doing.I have to analyze how the heat propagates inside a boulder. For doing this I separetely created a...
View ArticleLiveLink with Excel - extract data from an exiting Table
Hello,I am trying to extract data from the results and show it in excel. I followed the following procedure:In COMSOL I was able to define a table and save its content on an excel fileSaved the mph as...
View ArticleGraphing cut line of a solution divided by a point probe value
Good morning,Thank you in advance for any help you can provide.I have an EM simulation in which my region of interest is a cut line. I wish to plot to plot normE of the solution divided by the value of...
View Articlestationary study for a "Equilibrium Discharge Heat source" never converges
i tried a very simple model of "electric current" + "Heat transfer" in an argon medium, i added the "Equilibrium Discharge Heat source" to get the joule heating in the gas, the model boundaries are all...
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