Extracting State Space Matrices from
Hi All, I was using batteries and fuel cells module for my thesis project. I want to extract the state matrices. For that I entered the following command to matlab CLI and i am getting the error below...
View ArticleMagnetic Thermal Generator
Our company deals in reducing military surplus electronics to re-useable parts. One device caught my attention as it was moved to the recycle bench. It is labeled as a Magnetic Thermal Generator model...
View Articlequestion about the mesh
in comsol i have made a 3D model: There are two Geometries, a big sphere and a small cylinder in the sphere. the mesh of the sphere can be made coarser, it's not important. for the mesh of the...
View ArticleHow to add weibull distribution to the rock proprieties?
I want to set Youngs modulus as weibull distribution. Could you tell me how to do that? Thanks.
View Articleproblem with cap faces
Hi; I want to use cap faces in a certain geometry. I successfully used cap faces in other geometries but in this certain geometry it gives me error (failed to create cap faces). I'm uploading the...
View ArticleExporting Far-field Polar plots data
I would like to export the Far-Field Polar plots data. When I tried to export , I cant plot similar to Polar plots in COMSOL. Any suggestions. It will be really helpful. Thank you.
View ArticleMagnetophoresis simulation. "Evaluation of particle tracing data failed"
Hello all, I'm currently doing a multiphysics simulation using Comsol 3.5. I used a Magnetostatics (qa) model where I designed a permanent magnet of 12 by 12 mm with a applied field of 500mT at a...
View ArticleDisk error while writing to temporary solution file
Dear Sir/Madam: I running five different HT+CFD transient model simultaneously from last Saturday and today morning I noticed the error saying "Disk error while writing to temporary solution file." I...
View ArticlePML error
Hi all, Can someone point me what I do wrong? I tried to repeat Scattering from plasmonic nanosphere model, so I have Au sphere + Air domain (sphere) +PML/ABC domain (sphere). When I defining PML as...
View ArticleSimulation error
Hi , I am getting this type of error whey i am trying to start simulation. "Variables property does not include all variables in Xmesh" Could anybody can give me any solution/ suggestion. Thank you...
View ArticleModeling a Dielectric as a Real Capacitor
Hello everyone, I am having trouble modeling something. I would like to look at the conduction/conductance/resistivity of a insulating/conductive composite. It could be thought to be like a...
View ArticleSlow matlab livelink with comsol 4.3a
Hi everyone I have a Comsol 4.3a model which takes about 4½ minutes to run. I would like to run it through MatLab to do sweeps over several parameters and only save a few results from each run. However...
View ArticlePML for Structural Piezo-electrical element
Does anyone have experience in setting up PML for structural piezoelectric element in COMSOL 4.0+ environment? Thanks. Richard
View ArticleJoule heating simulation problem
Hi I am doing joule heating simulation for a thin surface to generate high temperature. I applied 120V to a thin film but the obtained temperature was not high enough. I found that the temperature...
View Articlesimulation of wireless power transfer
hi. I am new in simulation of wireless power transfer .which software should i use?can i use simulink?and please send me some links so i can learn to use this software.
View Articlereg bicycle dynamo
guys how can i get simulated results for bicycle dynamos 1) can i vary the conditions ie., at particular rpm the output voltage is this much this much ??? 2) how to build the bicycle dynamo for 12v 6w
View ArticleHow to block the displacement and the rotation of the center of gravity ?
Hello ! I would like to extract the center of mass of a structure and stop it from moving. I am beginning with Comsol, the study is time-dependent in solid mechanics. Thank you in advance, Rémy Roux
View ArticleSimulation failed on 3D model with magnetic field, creeping flow and...
Hi everyone, I am doing some research about magnetophoresis using Comsol. There are some questions about Comsol that simulation was successful on 2D model with magnetic field(,with or no currents),...
View ArticleHow to save deformed geometry so that it can be used as new initial geometry...
Hi. I am looking the ways to save the deformed geometry at the end of analysis, and i would like to use it as a completely new initial geometry for further analysis, by clearing out the previous...
View ArticleVarious Problems for Two Phase Flow coupling with Electrostatic
Hi! I am working on Two Phase Flow coupling with Electrostatic using transient (phase initialization and time dependent) solver to simulate electrospray phenomenon, I have encounter some problems and...
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