How to scale data before computing
Hello all. I have an experimental data set that I am trying to compare computational data to. The experimental data is in the range of 0 to 1 while my computational data is on the scale of 1E-15. How...
View ArticleModeling a viscoelasctic cell
Hi,I need of help for modeling a viscoelastic cell.First, I want learn to case stationary, and after time dependence with oscilatory stress.I'm new to comsol multiphysics, and would like read...
View ArticleModeling charge distribution in homopolar generator
Hi,I've read tutorial on homopolar generator modeling in COMSOL where it shows current flow. https://www.comsol.com/model/download/452611/models.acdc.homopolar_generator.pdfI'd like to know is it...
View ArticleInternal error CAD import.
Hi,I tried to import my drawing form SolidWorks but comsol prompt me this error message. How to fix this? I'm using 5.3a version.
View ArticleAutomated selection in assembly finalization
Hi,I am working with comsol just over 2 years now and since the introduction of selections I am trying to leverage them to automate my models. However I find the functionallity so far quite limiting...
View ArticleSimulating non-periodic nanoparticle - problem.
Hello all,I am hoping to simulate a non-periodic free-floating nanostructure encapsulated entirely by silica glass. The entire structure is surrounded by a PML layer. I extract transmission and...
View ArticleViscosity for an ideal gas
Dear all, I have a problem in my material for a turbulant CFD problem. As a simplification, I want to model a argon gas passing through components such as an orrifice and nozzle with inlet of 0.1 lpm...
View ArticleImpedance of "coil" at 1MHz.
Hello, I have a bit of experience using comsol to solve a coil's DC parameters. However, the particular project I am currently working on uses a coil which the two terminals are not physically...
View ArticleFinding/plotting the location of the maximum along one direction as the...
Hello.I am aware of the usage of the minimum coupling operators. But I have found a situation I can't get out of.Let's assume we have a rectangular domain (x€[-1;1] and y€[0;1]) in which a variable...
View ArticleMode Analysis: search mode around a variable in a parametric sweep
Hello,I am running the comsol 5.3 RF: Mode Analysis Module. I am trying to run a wavelength scan and calculate the corresponding confinement loss.Now before computing, there is an option of providing a...
View ArticleModeling of axial symmetrical structures
Dear COMSOL users,I have problem while simulating axial symmetrical structures. The problem is that I have truncated cone in which the base radius is r1 and the upper radius is r2 (r2 > r1). As you...
View ArticleAbsorping Plasmonic Waveguide Reflection and Transmission Coefficients
Hi I am trying to calculate the reflection and transmission coefficients of a plasmonic waveguide and I have read the COMSOL examples using S parameters and ewfd.nPoav. But I am not geting the right...
View ArticleVillermaux-Dushman reaction for calculating Mixing Index & Mixing Time in a...
Hi, I need to compute mixing index of a T-Shape micro-channel. So I decided to simulating Villermaux-Dushman reaction in it. What physics or multi-physics of COMSOL is useful for simulation of a...
View ArticleSingular Matrix
Hi, what means "Singular Matrix" error? Itried to have a Stationary study but this error apeared after a few secounds.
View ArticlePlot Farfield on an XY rectangular plot
x-axis: Theta y-axis: Gain [dBi] cut: phi=0How can I do this? Soooo frustrated?
View ArticleCreate Frequency response function (nonlinear backbone curves) with transient...
Hi,I want to achieve the following:Large deflection (geometric nonlinear) transient analysis of a prestressed (pretensioned) clamped-clamped beam.(input acceleration) Apply body acceleration (user...
View ArticleImprove CAD import resolution
Hi All,I'm trying to model a toroidal inductor in 3D with a rectangular cross-section. I've successfully made the CAD model, and am trying to import it into COMSOL. However, I'm getting internal error...
View Article3D FSI of Multiple micro pump systems
hello Everyone! I am a Research scholar and new to the COMSOL. my Study requires the simulation of multiple piezoelectric valveless micro pumpS. and I want to apply 2-Way, 3D-FSI approach. Is it...
View ArticleProblems with volume calculations
Hello!I am using LiveLink for Matlab for constructing and contrtolling my model. In short I am caluclating thermal distribution around the electrodes in biological tissue. I used an integration...
View ArticleEmpty Elasticity and Coupling matrix
I have noticed that sometimes when Si or Cu is used as a material for piezoelectric or piezoresistive simulations, comsol gives empty Elasticity and Coupling matrix. hence i have to manually input...
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