How can I customize piezoelectric materials correctly？？
Hello，everyone， Genius and wisdom. Recently, piezoelectric materials have been customized, but the non-convergence and inconsistency of initial value are occured in the simulation model. Then I...
View ArticleTet vs quad Mesh?
I use the free tetrahedral meshing as it is the default. I read a comsol blog post basically saying that tetrahedral meshing is superior in enabling comsol to find a suitable mesh. I can't however find...
View ArticleParticle size distribution in Li battery single particle model
Hello, I want to add a particle size distribution to a negative electrode in Li battery single particle model. In fact, the goal is to define a multi particle model instead of a single particle model....
View ArticleNon-reciprocal transmission by spatiotemporal modulation of relative...
I am trying to reproduce the paper: Complete optical isolation through indirect interband photonic transitionsThe non-reciprocal transmission they have demonstrated in fdtd by their in house simulation...
View ArticleAg2O-Zn Battery
Looking to purchase the batteries and fuel cell module. Can this module simulate redox reactions between Ag2O and Zn electrodes? Thanks
View ArticleExporting data files after parametric sweep with varying mesh size
The below post is related to an archived discussion[start here] Hi, I'm doing a parametric sweep on some of my model's geometry parameters. I would like to export the data for each parameter...
View Articlelithium ion battery anode simulation
Hi everyoneI'm using comsol to simulate the anode capacity fade in lithium ion battery, now I have this model but it just does not converge. Tried many methods (such as solver congiguration and...
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How to create a spiral phase plate in COMSOL?
I want to model a Spiral Phase Plate (as shown in figure SPP.png).Here the thickness of the object varies with the azimuthal angle as in .I have tried using a parametric surface to draw the faces of...
View ArticleRotating Machinery field distortion for discontinuous mesh
Hello,I am simulating a simple model of a conductor rotating in a uniform magnetic field. I am using the rotating machinery module in order to do so. I form an assembly and use a moving mesh in order...
View Article2D contour from x-y point data only
Hi folks,I have an interesting results analysis problem. I would like to be able to take extracted point data, regrid it, and then generate a contour plot within Comsol Multiphysics. Presently, we...
View ArticleEigenfrequency change in acoustic structure interaction / radiation model
Hello, I am interested in modelising the elasto-acoutic coupling of a thin plate surrounded by air. My model is a plate surrounded by a sphere of air. My problem is that if when I change the radius of...
View ArticleCOMSOL FSI Simulation
Hello everyone, hope you all are safe and sound and doing well. I am new to comsol and I want to simulate the solid body like a fish moving in a water. I want to calculate the velocity, drag and lift...
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Modelling the Spatially Non-uniform Current Density of an Electrode
Dear All,I have a 3D electric current model of an electrode in a medium, where the electrode is modelled as a thin disk. I would like to model this electrode as having non-uniform current density on...
View ArticleThe display problem of deformation results of folding structure simulation
Hi,I am new to COMSOL. This model is a folded structure, and its simulation process is: PNIPAM folds the surrounding elastomer board through thermal contraction (the coefficient of thermal expansion is...
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Why can I not do a periodic mesh despite identical surfaces?
I have a fairly simple structure that is visally periodic yet Comsol refuses to perform a face copy operation. I have attached the mph file and the imported .stp file. Below is my geometry. I have...
View ArticleMulti-material Coil issue
I am having an issue simulating a coil usng magnetic fields physics. I have simplified the problem down as much as I can an find that the coil feature only seems to work when all parts of the coil...
View Articlesolid mechanics-How to avoid geometry self-intersection?
Dear all, I do not know how to use "contact" to simulation the situation that when edge load is aplied in, the geometry is deformed, but the geometry shows self-intersection. I do not whether I express...
View ArticleSimple MEMS Cantilever - No Electrodes
Dear All,I am new here and I would like to model a simple cantilever with no electrodes to figure out its fundamental resonance peak, and its frequency response. Please advice: what module(s) and...
View ArticleCoupling between silicon waveguides
Dear everyone , I am new to comsol and need your help! I would like to ask a question regarding one of the problem i am facing in the simulation of my current project. I want to see coupling of em wave...
View ArticleInterconnect delay with respect to temperature
I would like to see the effect of temperature causing signal propagation delay through the interconnects. How should I model my physics?
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