Combining Infinite Elements and Translational Motion
I am working on a model and have been unable to find a way to combine both infinite elements and translational motion on the same domains in the model. I have attached a picture from a slightly older...
View ArticleMulti-linear isotropic hardening
Hi! I'm working on a thermo-mechanical model (including plasticity) and I am defining a hardening function by an interpolation function because I have the stress-strain curve. The problem is that I...
View ArticleReflectance / Transmittance calculation using PORT
Hello all I want to calculate effect of nanostructure on reflectance and transmittance. As a starting point, I have refered "Fresnel equation" library. Without any nanostructure, the calculated...
View Article3D optical waveguide error
Hello everyone, What I'm trying to do is basically simulate an optical fiber in 3D. I thought it would be a simple task but I'm running into an error. I created an optical fibre with an air cladding....
View ArticleMutual coupling between stator and rotor of electric motor
Hello, I am trying to observe the magnetic coupling between stator and rotor of electric motor. I have buit a simple model in COSMOL, I have given three phase voltage to stator winding and successfuly...
View ArticleComsol Rf penetration simulation
Hi Everyone, I am newbie to Comsol and I want to know ' is it possible to simulate the RF signal penetration through different metals using comsol?' I am testing, what different metals the RF signal...
View Articledisable scineffect in the coil domane
Dear all, in my model i have 2 circular coils width N1=20 and N2=20. N1 have a currenr 1A and N2 have a current 0A. I started my study width 140kHz. Frequency domane. Because in the real we use a high...
View ArticleMeshing around a random surface
Hello, I am modeling diffuse joining using phase field method (entered as coefficient form PDE) in COMSOL. My domain is a parallelogram twice cut across with random surfaces. Each surface is generated...
View ArticleEigenvalues and Eigenfrequencies
What are eigenvalues and eigenfrequencies? What do they do? (I'm really new to COMSOL.) Appreciate the help!
View ArticleFace number assignment when applying a potential
Hi, I was wondering whether someone can help me. I have made a 3d wire mesh in comsol, Would it be possible to select on all the inside faces of the wire without manually clicking them all so that a...
View Articlehigh strain rate modelling
i am a beginner. i want to use johnson and cook model for high strain rate in comsol. how to do this in comsol. kindly please regarding this.
View Articletffs Module - Journal bearing - cavitation
Hello all, I use the thin film flow module (with reynolds equation) to create a journal bearing model. I am trying to build a journal bearing model which gives me a realistic fluid film pressure...
View ArticlePlotting along the cross section of helical profile
Hi, I want to plot 1D line graph along the cross section of helical structure. Is there any way to do that? Thank you,
View Articlemixing two laminar flows of different fluids in the same chamber
Dear all, I am trying to mix two laminar flows of different fluids within the same chamber in a very simple geometry. In particular, I have two “inlet pipes” converging into a common chamber with an...
View ArticleAcoutics Module
I am trying to model a sound source (speaker, just a "power point source" now) in a sphere and prove that the sound is concetrated in the center of the sphere. Then I want to add sound treatment to the...
View ArticleComsol Import Module Troubleshooting
Recently I had the IT department set up a single floating license of the Comsol Import Module for my university and I'm having difficulty accessing it. When trying to import .igs or .step files into...
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which coupling operator to use?
Hi, I have the field for two different fibers with slightly different geometries (lets call them E1 and E2). Now I want to calculate the integral: where A is the area of both fibers. I was oriented by...
View ArticleAdvanced study of COMSOL
After reviewing the references like user guide of COMSOL multiphysics and CFD module I am quite comfortable with the interface and general simulation running. However it is still challenging when the...
View ArticleOpen boundary condition
Hi everyone, I have a duct which opens to a LARGE VOLUME. To model the flow inside the DUCT, I am specifying an unsteady inlet velocity. At exit of the duct, pressure is not known and the pressure...
View Articleelectric field and potential distribution
Hi I have been working on a 3D (AC/DC) model of a insulator, and I am trying to verify the uniform potential and field distribution along the insulator surface. I apply 33Kv voltage at HV end and other...
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