Particle energy distribution
Hey Comsol gurus, I am trying to simulate complex particle distributions in electric and magnetic fields. The mf and es parts are working quite nicely but I am experiencing some difficulties setting up...
View ArticleParticle Tracing Plot
Dear Comsol Community, I am simulating particle tracks in a mass spectrometer. I would like to know the particle positions after they exit the magnet, i.e. when they hit a screen. I would like to make...
View ArticleLinear Boundry Load
hi, My model is a simple square geomechanical model. I am going to apply a linear boundary load along the right side of square but there is no option for doing this. Could you please help me with this....
View ArticleB-H curve for Soft Iron
Hello there ! I am about to use (soft iron) as a core for a saturable device . I need to specify the H( knee) & B(sat) points, but the listed values of B & H in the BH curve seem to away...
View ArticleNegative effective strain (solid.epe)
Hello! I'm doing a thermo-mechanical transient process, however, when I evaluate the effective plastic strain versus time at certain points, I get negative values ​​for effective plastic strain (ts.epe...
View ArticleLooking for someone with Comsol experience
Dear all I need some Comsol models to do in the next month. I don't have much time and experience to finish all so I am looking for some help. The simulation must be in the Ac DC module to model the...
View ArticleComsol 3D Simulations Memory Requirements
I am simulating inductor coil with shielding and square surrounding the arrangment. While solving the problem in 3D I am getting this error, for this much of DOF how much ram I would need to compute...
View ArticleMagnetic Fields: 2D Axisymmetric Model of Toroid Inductor
Hey guys, I want to determine the inductance of a toroid core + winding as shown in .jpg I specify an external current density, such that the current flows around the core (in r and z direction). Under...
View Articlecomsol not using the entire memory
I have 32GB of ram on my computer with an 8 core cpu, but the transient solver im using does not go beyond 7gb and my processors running between 40 to 60%. I looked upon a few threads on the forum but...
View ArticleTime dependent material properties
Hello I'm trying to make a simplified thermal model of a Li-Ion battery. I'm using the Joule Heating model and a time dependent study. I want to model the State of Charge with either an integration of...
View ArticleHow to combine PML and Port together By Comsol 4.3
Hi, I am simulating the surface plasmon resonance. I use pot to set the incident TM plane wave. It looks that there is still some reflection from my port boundary. I want to add a PML to absorb the...
View Articlecomsol run very slowly with 200 materials
HI I am doing research on electrical resistivity tomagraphy. I tried to use comsol. But it run very slowly when i have more than 200 materials. In my model, I have 216 blocks with 216 kinds of...
View ArticleError about "unsupported operation of this type of object"
Hi all, I am trying to import a .stl file (scanned from microCT) to 3D geometry and then try to build a block outside. When I formed the two parts into a union, this error happened "unsupported...
View ArticleEncountering error during meshing
when I try to run a mesh i encounter the following error message: "Edge is much shorter than the specified minimum element size." I do not know what this means and any advice on how to get rid of this...
View Articlejava.lang.ClassCastException when using LiveLink from MATLAB
Hi there, I've been successfully using COMSOL and LiveLink for a few months now for generating and simulating electromagnetic models. However, yesterday I ran the same MATLAB code as I always do, but...
View Articlecurve cylinders
How can I draw a system of curved cylinders intertwined to form a portion of capillaries?
View ArticleThermoelectric Model
Dear All, I am looking to find and study example models relating to thermoelectric effect modeling using COMSOL. Does anyone have any reference source/model on thermoelectrics which could be used ?...
View ArticleThermoelectric PDE mode
Hello Sir, I am a new user of COMSOL. Currently I'm working on a model for a thermoelectric generator using PDE mode. After done with the layout, in the post processing result the temperature profile...
View ArticleThermoelectric Effect - Adding the physics
Hello, I'm working in a project on thermoelectric generator. As 'Thermoelectric' physics interface,is not in the physics area/physics list, I was trying to add the physics using the steps given in the...
View ArticleThermoelectric Effect
Hello, I'm working on Thermoelectric Generator and I would like to have a basic model with the equations used in COMSOL, Could anyone who worked in this field, please help. With Regards . Pheba
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