Undefined variable
Undefined variable. - Variable: comp1.spf.K_stress_tensoryx - Geometry: geom1 - Domain: 3 Failed to evaluate Jacobian of expression. - Expression: comp1.spf.K_stress_tensoryx Failed to evaluate...
View Articledetermination of the refractive index from S matrix for a metamaterial unit cell
Hi all, I'm trying to the determine the effective refractive index for a metamaterial unit cell. For this case, the cell is oriented parallel to the propagation direction (k) as show in the references...
View ArticleI am trying to make a surface plot of the first strain invariant
Hello all,I am trying to make a surface plot of the first strain invariant in my model.In the solid mechanics module, I don't seem to have access to it. However I have seen documentation which states...
View ArticleMeasure Stress at Certain Point using Probes
Dear COMSOL users, How to measure the stress in my model at certain points by using probes?
View ArticleDiscretization
Which discretization method would you recommend for concentrations in the Electroanalysis node? Default is linear.Lasse
View ArticleVacuum Packaging the gyroscope
Hello, I want to vacuum package the gyroscope and then carried out the stress analysis and thermal analysis. But i don't know how to package the device in comsole. Can any one here help me out please.
View ArticleHow can honey fluid be modified by COMSOL?
I drunk over it, and this question inspired me, because it was very ropy and high crystallinity. If somebody has an idea, let us have a contect.
View ArticleSelect 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...
View ArticleClik here to view.
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 Article