Who has Comsol model of the Modeling Hysteresis Effects
HI everyone, I have a tutorial on Modeling Hysteresis Effects (in Comsol 3.5). Currently, I need this model for reference of hysteresis loss analysis. Anyone who has this please share the model here?...
View ArticleCOMSOL Multiphysics 4.3b is now available
Hello COMSOL Community! Five new modules and a tremendous number of new features and enhancements are ready to be applied in your models and simulations. Release Highlights are available at...
View ArticleDe-icing of wing
Hi, I'm doing simulation of deicing of wing due to heating up sections of the leading edge of the wing. However, when I go through all the boundary set up and run the solution. I get an error:...
View Articlefloquet Boundary condition in PDE module
Hi everyone I'm trying to solve a boundary value problem in a periodic structure, I have to use PDE module to solve the coupling equations, and I need to impose floquet BC on two parallel boundaries on...
View Articleinternal error geometry decomposition
Hi everyone! I built a model in which 40 spheres are randomly placed in two cylinders and 4 spheres are fixed in the third cylinder. The problem is two errors are shown when i run the script:...
View ArticleMises or First-Principle-Stress for laminates?
Hi, someone told me that i should use the First-Principle-Stress- value für a laminate containing glass, polymers and silicon. The setting is: Glass - Polymer - Silicon - Polymer - Polymer 2-BEAM with...
View ArticlePleasse help me.
Good day. Would somebody be so kind as to send me a model ID 14191? Thank veri much. goodbye
View ArticleFind Inertial Modes, Eigenvalues for a Sphere of Fluid
I am new to Comsol and I am trying to find the eigenmodes of a rotating sphere filled with water in the rotating frame. I have specified the sphere filled with water with free slip walls, specified...
View Articlecomsol 4.0 how to have unequal scaling on different axes
In comsol 3.5a, i could selected under options->axes/grid settings the option that the axes not be equal. I have problems where dimension along one of the axis are microns while along the other axes...
View ArticleTransport of diluted species and electrostatics
Dear Community, I am trying to combine the physics of the poisson equation (electrostatics) with the nernst-planck (transport of diluted species) in Comsol 4.1 for like 6 weeks now, and all I get is...
View ArticleEigenvalue Calculations In RF Module With Perfectly Matched Layers: Radiation...
Hi everyone, I have one part general info that maybe others will find helpful, and one part question. Here goes: I've been trying to compute the eigenvalues of dielectric GaAs disk structures (embedded...
View ArticleSelf and mutual inductance Calculation 3D (Ivar Kjelberg)
Hello, I am a newbie in Comsol and i am using the version 4.2a right now. I am trying to calculate the self and mutual inductance between 2 coils in 3D. i tried to search for different solutions in the...
View ArticleFinite Elements for Fluids P1+P1 P2+P1
Dear Comsol users, Comsol sets P1+P1 elements as default for laminar flow described by Navier-Stokes equations. As far as I know, theoretically, these elements are not good for such equations. Instead,...
View ArticleSplitting one Geometry in two
Hello, Iam a newy in working with comsol Multiphysics and would be very glad if I could find some help in this forum for my problem. I would like to define two different materials in one geometry. You...
View Articleparameter sweep error when loading a geometry
I am applying a load to the top of the geometry shown while the bottom is fixed but i keep getting an empty parameter sweep error can u help me??
View ArticlePoint Evaluation using Biot-Savart Law.
Hello everyone, I am currently attempting to do a point evaluation with the expression for Biot-Savart Law. The set up is like this: I have an array of points that I would like to get the value at...
View ArticleECT sensitivity distribution maps
Hi, I am using Comsol ver 3.5a Electrostatics module to design my 12 electrode electrical capacitance sensor in 2D. Now i would like to generate a sensitivity map for this ECT sensor but before that...
View ArticleChanging geometry and plotting the results in graph
I am simulating a 2D inductor coil in ACDC module , but now I want to change the air gap of the two coils in steps and want to calucalte the value of inductance over these steps of airgaps. I have...
View ArticleUsing the assembly form
Hello, I am trying to simulate with "piezolectric devices". Specifically, I would like to exert stress on a thin film in contact with a piezoelectric 3D block. The geometry is quite simple but in order...
View ArticlePeriodic Pulse
Hi I an working on Joule Heating and would like to generate 3 repeated voltage pulse Conditions: Pulse Width: 100e-9 Rise and fall: 10e-9 Period: 150e-9 This is what I tried Rect1>> Lower Limit:...
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