Finding the Volume Inside a Data Range for 3D Volume Plots
Hi COMSOL forum!I am currently working on a Solid Oxide Fuel Cell (SOFC) simulation. I am looking for a way to calculate a "volume of a certain region which considered inside the data range".I attached...
View ArticleHow to model a honeycomb matrix
Hi!I'm trying to model a honeycomb (HC) pattern by combining/mixing two identical matrixes into one (the HC).Let's say that the "first" matrix is the reference and that the "second" matrix (copy/paste...
View ArticleComsol Cluster Computing
Hi,We are trying to document the required settings to enable Comsol's Cluster Computing (5.4) in our university HPC cluster for the benefit of our users requiring HPC in their Comsol analysis. So far I...
View ArticleHow to do electroanalysis with changing concentrations
Hi there,I am trying to build a model to simulate the process of a gas sensor (analyzing the current density changing). Since the sensor is working in the electrolyte obsorbing the target gas. I need...
View ArticleDynamic behavior of axially moving plates
Hello everyone,Does comso lhave a tutorial suggested links for axially moving plates and shell? I would be thankful if you share your ideas and expiriences about thatBestpeyman
View ArticleDetaching bubble - ALE moving mesh
Hi,I modeling a growing bubble using ALE moving mesh in COMSOL. The bubble is pined at the surface, but at some point a neck is formed and the bubble detaches. I am aware of the limits for ALE moving...
View ArticleSolving electrostatic and electric current in single model.
Hello, I have a rectangular domain consisting of two different material. One half is dielectric medium that is the conductivity is zero and the other half is conducting. A potential difference is...
View ArticleDomain Selections Listed as "Not Applicable"
Hi all,I am trying to select two domains to run a Solid Mechanics study on (see image). I have been able to selecto two separate materials for the respective domains however when trying to create a...
View ArticleModelling Nanoparticle In Ultrasound FIeld
Hello,Using the pressure acoustics module, I defined my ultrasound transducer as a flat line at the bottom of a water tank and applied normal displacement to generate the pressure field.I now want to...
View ArticleSimulation of UV vis Absorption spectra
The below post is related to an archived discussion ***hello, iam new to comsol can anyone help me hw to do uv vis simulation in comsol[start here]
View ArticleLoad vector L is zero for both stationary and time dependent analysis
Dear all,I am studying the numerical analysis of wave propagation in fiber metal laminates to detect damages. One of the prime tasks involve model-order reduction. For that, I am trying to extract the...
View ArticleRe-starting a simulation with a different geometry
Dear all,I have a case where a deforming geometry is running time-dependent. At a certain time I need to stop the solution, copy the solution at that point. Then, I need to re-start the model with a...
View ArticleDoes anyone knows how to solve this problem in a simulation of a bragg fiber...
I am trying to simulate a Bragg Fiber Grating in 2D (for now). I am using Wave Optics Module in comsol. My fiber for testing, has 20 periods. I am using ELECTROMAGNETIC WAVES, FREQUENCY DOMAIN (EWFD),...
View ArticleImporting Geometry From XYZ Coordinates (Without Interpolationg or Without...
Hello,I have a Height Expressions that obtained from a 2-D problem solution and I'm trying to create a 3D Fluid surface whose one boundary is be determined by the Height Expression.I export Height...
View ArticleHow to view select domains for 3d plot group on COMSOL 5.3a
Hi all,I'm trying to view how temperature varies for some particular domains that appear in my geometry. The domains of interest are covered by other domains surrounding them.I started off by creating...
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2D toroidal solenoid simulation
Is it possible to simulate the inductance of a toroidal solenoid in 2D--say, a single copper wire with 100 windings?I am looking for instructions on how to do this, and cannot find out whether it is...
View ArticleHow to add an external radiation source to a 2D model to simulate solar...
I am using comsol to simulate the case of droplets being evaporated by solar radiation. In the 3D model, it is easy to add an external radiation source to simulate solar radiation. But how to add solar...
View ArticleSolve the Poisson equation with charge density data.
Hi I'm currently trying to solve the Poisson equation in Comsol using the charge density data I obtained previously. I'm doing potential simulations in semiconductors and obtained the charge density I...
View ArticleExporting Data Correctly as a CSV (bug)
When exporting data as a CSV, I've noticed COMSOL will use the delimiting character (a comma) in cell values. When the data is imported to other software, the cells with commas are split apart. It...
View ArticleSolenoid power supply rule of thumb?
I've got some* solenoids that aren't pulling very hard. 24VDC 0.5A being driven by a 1A power supply. The obvious answer is that the draw is too much so I need a bigger PS. But how big should I go?...
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