Table 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....
View ArticleDiffusion in thin film
Hello. I'm trying to simulate diffusion of CO2 molecules in a thin film polymer under certain pressure and temperature for a set time. However, I don't have the Chemical Engineering Module, but have...
View ArticleSequential simulations to model domain loading/unloading with media change...
Hello,I am running a simulation with three domains: one domain acts as a source of a chemical species (initial state set to fixed concentration C), one acts as a sink (initial state set to...
View ArticleSquare wave temperature boundary
Dear sir,I would like to have a time varying inlet temperature for fluid, flowing in an annular channel. The fluid temperature follows a square wave pattern with maximum temperature at 663.15 K and...
View ArticleMatlab function to output matrix with 21 components!!
Dear all:I am planing to use Matlab to do matrix manipulation, and then transfer the resulted matrix components to COMSOL to do calculation. However, I found the Matlab function can only generate a...
View ArticleToroidal inductor
Hi,I'd like to wrap a certain design for something that behaves like an inductor in another toroidal inductor with a rectangular cross section. It would be nice to use an axisymmetric geometry to do...
View ArticleDoes anyone know what element ratio means?
This is probably an easy question to answer. I am new to COMSOL. I was looking at 1D DC Glow Discharge tutorial that the COMSOL website had for the plasma module. On page 14 (Mesh 1/Distribution 1/Step...
View Articlemoving friction in comsol 5.2 (Solid mechanics)
Hello everyone, I am trying to simulate friction problem. the model is very simple. when i make contact of moving domain it shows no effect on model. the external force is applied using boundary load,...
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