Composite domains
Hi everybody, is it possible to compose domains which initially are distant each other, but then one moves towards the other? If not, anybody has some ideas on how to change boundaries conditions on a...
View ArticleCavity Eigenmodes not Returned
Hello, I've been browsing the forum for a while and it has been very helpful in the past but I cannot seem to find an answer to the problem I'm currently having. Inside of my microwave cavity I have...
View ArticlePassing post processing result to another study
Hi,I was wondering if its possible to do some calculations to results from a study then pass those to another study and run that? More specifically, I want to calculate the inductance of a finite...
View ArticleWorking with parameterized datasets
Hi all,I have a problem where I am trying to optimize a parameterized geometery. So for a large number of parameter settings I have COMSOL output datasets (e.g. x vs y datasets) and I need to analyze...
View ArticleMagnetic fields in 1D
Hi,I wanted to know if it is possible to add mangnetic fields to a 1D study.
View ArticleFailed to find a solution for the initial parameter. Stystem Matrix is 0
Hi Experts,I'm trying to simulate an acoustic structure interaction. It's 2 rooms ( cylindre ) seperated by a window, and i want to calculate the Sound Transmission Loss between these rooms.After...
View ArticleTable from parametric sweep and post-process data
Hi,I have just started using comsol a few weeks ago. I am running the RF module "Mode Analysis" study. I am trying to plot the confinement loss for different wavelength.Now I have all the data I need....
View Articleramp function in fsi
Hello, I am trying to use FSI to simulate a wheel moved by flowing water in COMSOL 5.3a. I could do it for 1 sec but then it would not work for longer period. I have two studies; study 1 (time...
View ArticleMicrowave oven tutorial
In the microwave oven tutorial in the electromagnetics waves, frequency domain, port 2 half model, port mode settings the input quantity is the electric field. the value put in the z coordinate is...
View ArticleApply pressure on the structure
The model is a anechoic coating. I want to apply high hydrodyanmic pressure on the coating to study the effect of pressure. But I can't find the effect of pressure when I use body load to apply the...
View ArticleHow to keep irregular edges from a DEM
Hello,I am trying to build a geometry by importing a DEM and several subsurface layers for a hydrogeological model, which I have created in ArcMap. I am able to bring these surfaces into my project and...
View ArticleHow to calculate total current with Matlab livelink?
I built a cylinder conductor (axial symmetry), bottom surface is grounded, top surface is connected to a voltage source, i want to calculate the total current passing through the conductor in...
View ArticleLaser Polishing
How can we develop 1. A thermal model using COMSOL for the process of Laser Polishing in metals. 2. To know what are the optimum parameters required for this process. 3. To know the melting depth.
View Article"Failed to analyze local face topology" when meshing
I am trying to mesh a 3D domain but no matter what meshing settings I choose I am getting the following error:Failed to analyze local face topology. - Face: 12 Invalid curve or surface.In the file, the...
View ArticlePhase Change Mass Conservation
Hi all,I am working on a simulation involving phase change of fluid flow from water to steam. The goal is to start with an inlet flow of liquid water, have a heat flux input, and end with an outlet...
View ArticleParametric Sweep not evaluating
Hello,I am performing a parametric sweep of the thickness of a dielectric in a heterojunction. After computing, only one value is listed under the results for the parameter list instead of the entire...
View ArticleHOW TO SWEEP TOOL WORK
Hi, when i build sweep tool to form helical fins on circular pipe than helical fin generate but it did not follow the circular pipe.it move along the pipe axis but become a seprate body except initial...
View ArticleModelling one-dimensional transient heat transfer
Hello,I am new to COMSOL, and I am modelling a one-dimensional unsteady state heat transfer process across a solid cylinder, I would like to learn about how the temperature distribution changes with...
View ArticleHow can I access "Time-dependent Segregated" in the Solver of Comsol 5.2
I am solving a problem which has been solved using Comsol 3.5a with Comsol 5.2. There was "Time-dependent Segregated" in the Solver of Comsol 3.5a which was used when the problem was initially solved....
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