Particles traveling through boundaries
Hello All, I am attempting to use the particle tracing function on a laminar flow in a small channel with obstructions in the channel. I modeled the design after the lunchtime seminar on the particle...
View ArticleEigenfrequency seems right, but displacement units are totally wrong.
Dear Comsol Community, in the model attached I have a 20 micron long beam using the Solid Mechanics module to get the Eigenfrequencies. I calculated them manually using Euler-Beam theory and the first...
View Article"Hinge assembly" problem
While going through the solved model 'hinge assembly' given in the COMSOL, I came across some difficulties. Actually, I have to develop a solid model involving hinge joint similar to what is provided...
View ArticleHow to assign a defined function to an electrode????
Hello Friends, Am working on AC/DC Module and new to comsol. Am trying to define a rectangular pulse of 1200v with a duration of 1ns to an electrode and i wish your kind assistance for the same. Thanks...
View ArticleWhich Lithium on battery is used in Lithium ion isothermal 1D comsol model
Who is the manufacturer? which model ? anyboby knows?
View ArticleIs it real to simulate Full Lightning Impulse 1,2/50 us in Comsol 4.0?
Hi I simulate electric fields in high-voltage switchgear. In my models I use AC/DC Module Electrostatics (es). If the electrode is under high potential, the boundary condition for that electrode will...
View ArticleThermofluidic Modelling of hydrogen absorption in metal hydride bed
For learning purposes, I was trying to do the this project Thermofluidynamic Modelling of hydrogen absorption and desorption in a LaNi4.8Al0.2 Hydride Bed at...
View Articlecomsol solve this kind of moving mesh
hi, i have one doubt about moving mesh (ALE). i want to pass the laser beam on rectangular plate. i want to use mesh density around the laser beam only,not full laser path. so i would like to move beam...
View ArticleCOMSOL License Error -15, 570
Dear COMSOL team, We purchased a 64 bit COMSOL 4.3 verson of software along with a server license. After installing the software on a Linux (Debian 6 Squeeze) based system. We are encountring the...
View Articlehow to measure max and min electric field of certain surface area ?
I simulated the insulation with a void , ( rectangular and circle) in 2D. any way I want measure the max and min of electric field on the surface of the circle (certain surface) then how can I do THIS?...
View ArticleMoving Mesh problem/ Electromagnetism / Induction heating of rod
Dear Ivar, I am working over a problem, induction heating of a rod moving inside the furnace with a certain velocity, required to relieve stress from the surface. The furnace is stationary, means the...
View ArticleGeometry present or not depending on a parameter
Hi! I am trying to create a geometry that will have certain elements appear or disappear depending on a variable. For example: I have a variable "var1" that can take the values of 1 or 2. I have a...
View ArticleEstablishing upper and lower limits for a PDE dependent variable
Hi! I'm solving a PDE system in the physics Coefficient Form PDE and I need to stablish and upper and lower limits for the output values of my dependent variables. Thank you!
View ArticleUsing a step function for a stationary study
I am attempting to model a cyclone using the k-epsilon solver and occasionally get some convergence issues. Would it make sense to use a step function to ramp up the inlet velocity? Can I use a step...
View ArticleRotate Plane View
Is there a way to select to xz plane view and rotate the view so the z axis is point up? I want to take screen shots to put into a report, but I need my model to be seen as standing up. There should be...
View ArticleError while processing
Sir, While computing the results for my model, I got an error which says" Failed to find consistent initial values. Segregated group 2 Out of memory during assembly. Last time step is not converged. -...
View ArticleViolating basic transformer equation
Hello all , I am doing simulation of two coil system with some gap between the coil , the problem is I defined the No.of turns in Multi turn coil domain and excited with voltage of 220 V , When i am...
View ArticleMetal Hydride Storage Simulation
Hello I am trying to explore the possibility of using COMSOL to simulate the Hydrogen storage in solid metal hydride. I have seen several papers using COMSOL for this purpose. I still do not have the...
View ArticleSolid mechanics and element settings
Hi! I am analysing stresses and displacements of simple 2D steel plate with Comsol 4.2. I need to get results calculated by triangle linear plane stress elements for comparison. How can I change...
View ArticleHow to calculate the displacement of crack
I need to find the displacement (u) of a crack on a 2D centre crack plate under a load. I need to find how large the crack has gotten under the load How can I do this?
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