Variable using results from two studies using different components
Hi all,I am running two different frequency domain studies(Solid Mechanics and EM), each one using a different component and after the computation is done, I would like to define a variable taking as...
View ArticleClik here to view.
Problems with the boundary conditions in an AC/DC simulation
I'm trying to run a electrostatic model in 3D. It has two electrodes (spheres) embebbed in air (another sphere) and we wnt to know the net electric field. When I define the boundary conditions, one of...
View ArticleCircular displacement control moving mesh
Hi,I am trying to simulate the movement of a contact line in fluid flow using moving mesh. I want the movement of the contact line to always be along a defined circlular path with the velocity...
View ArticleCoupling between physics
Hiii I have multiphysics defined different physical properties on the same Geometry, (Rotating Machinery mixer (rmspf) and Laminar Flow (spf). Comsol Solver is Solving each physics separately and it is...
View ArticleComsol 3.5a ERROR 9040 when I mesh or solve
I was using comsol 3.5a in win10, and thesedays when I started to mesh even a 2d rectangle, it was told me that it has a ERROR 9040. Do anyone knows how to solve this kind of problem? Exception:...
View ArticleHeat Transfer - Heating one Side of a Chip
Hi all,I am new to Comsol and I am trying to model a silicon chip (12cm length) and heating up 1cm on the top of one end. My approach was to build 2 Blocks, which are attached to each other to create...
View ArticleJoule heating in small electromagnet
The below post is related to an archived discussion[start here]Hi there,I have studeid the heat transfer tutorials...
View ArticleComsol file with multiple components: how to solve a single component and...
Hello, I have a comsol model with several components. They use complicated functions and parameter dependencies, and share also many things. This is why I have put them into a single file (because...
View ArticleSelection of live elements to set new boundary condition
Hi I am working on laser cutting process. I know that we can able to kill the element by dropping young’s modulus (close to zero) method using comsol. However, I would like to kill the elements...
View ArticlePressure probe
hello,Somebody can explain me how i can use the pressure probe please ? comsol version 3.a
View ArticleEffective mode index!!!!!
Hey guys... I need a help about effective mode index..When I simulate the mode analysis, the result shows like below.1.4498(1) 1.4498(2) 1.4499(1) 1.4499(2)"(1),(2)"<==== What does this...
View ArticleCould COMSOL FSI handle contact between solids submerged in fluid?
Hi everyone,Could anyone address whether the COMSOL 5.3a FSI (which uses the Arbitrary Lagrangian Eulerian, ALE method) can handle contact between solids submerged in a fluid?I am attempting to model...
View ArticleDoes COMSOL support simple matrix operations?
The below post is related to an archived discussion[start here]I need to define a matrix variable M as an expression of matrix products. For example, M = A * B. A and B are known. One certainly can...
View ArticleError message - Coupling between electric field distribution, temperature and...
Dearl all,I´ve used Comsol version 4.4 for generation of a electric field distribution coupled with temperature and flow dynamic in a coaxial treatment chamber for liquid sterilization purposes. A...
View ArticleSimulation on Spin Coating of Droplet
I wonder that it is possible to numerically describe shape on droplet or film on spin-coater by COMSOL. If possible, does it simply need centrifugal force as body force for the liquid and wetting force...
View ArticleSimulation of Architectured Cathode Peformance
Dear COMSOL Users, I am new to COMSOL and just getting started with the Battery Module. In my lab, we are exploring how architecturing electrodes can be used to fabricate high energy density, high...
View ArticleAcoustic source point set up
I have a question on the Acoustics module in Comsol, regarding how to set a monopole acoustic source. However, I understand that in Comsol, to set a point source, we are supposed to go to Physics >...
View ArticleSet initial values for heat transfer module: solid domain surface
Hi everybody, I am modelling the thermal gradient within a cylinder containing water, which is heated by a solid spherical element in the middle of the cylinder. I am using the heat transfer in fluids...
View ArticleMoving free surface in liquid flow model. (Retry, no replies to previous...
I have modest experience in using COMSOL, very limited in fluid flow modelling.I've encountered a new type of problem for me, & so far cannot 'get started'; any pointer to similar examples etc...
View Articleobtain temperature data over a line at a particular time
I would like to obtain a table of the temperature over a given line in my model at a given time. Is there a way to do this? I see that I can do the following, but these aren't quite what I'm looking...
View Article