Moving mesh example
Hi, Is there any example of using moving mesh with a pdf guideline? I need to model a moving magnet next to a coil and calculate the induced voltage!
View ArticleDeformation of a water droplet in a cilindric pipe with a toluene flow
Hello, I'm new in Comsol and I'm trying to solve a problem for an exam. I have a droplet of water placed on the axis of a cilindric pipe, and in the pipe flows toluene. I have to evaluate the...
View ArticlePiezoelectric material in Water Simulation
Hi all, I am trying to build a 3-D PZT 5H cube and put it in water and simulate it to get the impedance vs. frequency. I could build the PZT cube, but found trouble to put it in water. I am adding a...
View ArticleHow to set up a vibrating capacitive membrane?
Hi, I am working on a capacitive membrane set in vibration by ac+dc voltage. My physics (in order) is: 1. ALE 2. ES 3. Solid I setup a time dependent 2D study and created a global variable Vac= Asinwt...
View ArticleHow to enforce minimum gap between two vibrating structures- FSI
Hey, I am working on vocal fold aerodynamics. I am trying to perform 2D Fluid Structure Interaction simulations in which the air flows between the two vocal folds. The gap between them is very...
View ArticleElectric field not adjusting with moving mesh
Hi, I have created a model which is effectively a capacitor with a moving plate. I have ground electrodes on the fixed top plate and +/-100V electrodes on the bottom moving plate. I am using ALE with...
View Articleinverted mesh element near coordinate
Hi dear IVar I want to see the mechanical changes due to flow of current through two parallel wires in COMSOL. To do this, first I used two "magnetic field" and "solid mechanic" modules. After getting...
View ArticleHow to enforce minimum gap between two vibrating structures- FSI
Hey John, I am working on vocal fold aerodynamics. I am trying to perform 2D Fluid Structure Interaction simulations in which the air flows between the two vocal folds. The gap between them is very...
View ArticleMode analysis
What are the boundary condition which must be applied for mode analysis, is perfect match layer pml important , what is the thickness of layer. I ask if it related to the operating wavelength,
View Articlefailed to create mesh for a thin MEMS device
My device is thin and contain two "inner block" in the arms, so the meshing become difficult. Are there any efficient solution to create mesh? I may use extremely fine but the speed become extremely...
View ArticleMesh working up until the point I want to do a study...
I am looking at the capacitance of a relatively simple geometry. I had the model working perfectly when I was interested in the variation in capacitance as two parallel plates sweep past each other,...
View ArticleAutomatic element addition to simulate material deposition
I'm creating a model to predict temperature history during building a part from additive manufacturing using Laser as a heat source. In this case, the additive manufacturing process demands for a...
View ArticleAutomatic element addition to simulate material deposition
I'm creating a model to predict temperature history during building a part from additive manufacturing using Laser as a heat source. In this case, the additive manufacturing process demands for a...
View ArticleProblem in creating mesh
hi I have been trying to generate mesh for my stent model, it is showing out of memory whenever i try to build the mesh. I checked with my PC's RAM space. It has enough space to run. I tried to build...
View Articleheat transfer influids
Hello, I did an experiment in labaratory, and now try to model it in Comsol. I had an ice "dumbbell", filled with water in gaps (in comsol i use simmetry). Insulation was everywhere, except ice...
View ArticleMapped mesh
Dear Edgar, Thank you very much for your suggestion. However even in the model you sent me only the boundaries get meshed and when I try to mesh the domain outside the wire (Domain 1) using the Free...
View ArticleMapped mesh
Dear Edgar, Thank you very much for your suggestion. However even in the model you sent me only the boundaries get meshed and when I try to mesh the domain outside the wire (Domain 1) using the Free...
View ArticleOrthogonality of eigenmode's spatial profiles
I'm working on a plate vibration problem using eigenvalue analysis. The dependent variables are u, v, w and arx, ary, arz. I export the mode profiles sampled at a grid and for some reason the modes are...
View ArticleConversion method
What is the method of converting the 2D design in to 3D design in comsol
View ArticleMHD simulation problem
hi, i got a problem about MHD (magneto-hydraulic) simulation.The fluid is driven by a high frequency magnetic field and free deformation occurs hopefully. The fluid deformation occurred at a relative...
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