Coupling Frequency Driven Input with Time Dependent Behavior
Hi,I am running a model of a container with water in it. The container is subjected to a g-load and frequency, where the frequency is set to vary from 50 Hz to 350 Hz. ANd, I am trying to obatin the...
View ArticleAlternative to multibody dynamics module
The COMSOL at my university does not have Multibody dynamics module. What would be some good alternatives to that? Thanks
View ArticleParametric sweep modifying component definitions and materials
I am modelling a simple parallel plate capacitor in 2D with plate length "L" and air gap "d". When I set up a Parametric sweep over the variable d and run the simulation, the geometry, materials, and...
View ArticleElastic force plot in a viscous flow in rectangular microchannels
Hi! I'm working on particle deformation in viscoelastic flow conditions in rectangular microchannel devices. I would to perform a simulation by inserting the formula of the elastic force and then plot...
View ArticlePumping fluid by external loading
Hello, I am modeling a pipe which is very flexible, a displacement is applied on a strip of the walls (to pump the fluid). If the two ends of the pipe are connected to the same tank, and the whole tube...
View ArticleOpen File in comsol version 5.3
Hi everyone, I'd like open the "Switched Reluctance Motor" example, but it is in version 5.3a. How can I open in version 5.3?Regards, Rute
View ArticleMeaning of equation in solid mechanics and stationary study
hello In my model, i used solid mechanics and stationary solver.in solid mechanics, i can see the eqauion, but i cannot understand the meaning of that.the equation is 0= del FS + Fv , F = I + del u in...
View ArticleHow to limit the displacement of the armature in 0-0.5mm about the solenoid
Hello, My model is a solenoid valve ，and the armature displacement range of 0-0.5mm. I use the Newton's second law to describe it :d(v,t)M-Fz+kp-4[N]=0, in it, d(v,t) is the acceleration, M is the...
View ArticleSpace Charge Density Coupling - undefined variable
Dear Community,in my application I try to model a simple problem of migration/diffusion of ions in an electrical field (twi species like Sodium and Chlorite). Therefore, I use the Nernst-Planck-Poisson...
View ArticleBrain layers simulation
Dear COMSOL family, I want to simulate brain layers in COMSOL. I am new in using COMSOL. Can any one please give me an idea how I can start? Thank in advance.
View ArticleElasticity Matrix for Silicon carbide
Good evening sir, i need elasticity matrix and piezoresistive coupling of silicon carbide(Sic) 6*6 matrix. Please, send me sir.
View ArticleGeothermal production well temperature declines too slow
Hey all,I'm new to comsol (i've been using it for 3 weeks now). I'm currently modelling something that looks like the 'geothermal doublet' application from comsol, but instead I have a pressure driven...
View ArticleModelling a Novel Photonic Silicon On Insulator PhotoActivated Modulator
This device is similar to an inverted MOSFET. The only difference is that in the device , the n-type channel is separated from the p-type substrate by a Silicondioxide layer which acts as an insulator...
View ArticleELECTRO DYNAMIC LEVITATION
Hi guys I am trying to work out the in built application library model on electrodynamic levitation. I did the same procedures as done in the pdf. But i get the following error.Undefined variable. -...
View ArticleElectrical Circuit Problem
Hi everyone, I have a problem, I'm modeling a switched reluctance generator in 2D, and when I put a electrical circuit the solution does not converge. Anyone have a clue what could be?Regards, Rute
View ArticlePairing Models
I am very new to comsol software.How do I pair the two semiconductor and Schrödinger modules in Comsol? Do I have to make any changes to the Schrodinger or Poisson equations? Is there no need for...
View ArticleIn rectangular, anisotropic material
I use comsol to simulate microscale heat transfer. I made geometry with two rectangular pieces. I entered the material directly, but I have some questions. The diamond material I want to apply has the...
View ArticleQuenching Simulation
Hello, Can someone help me with the "Heat Transfer in an Oil Quench Simulation" in https://www.comsol.de/video/heat-transfer-oil-quench-simulation. I'd like to know what are the required PDE equations...
View ArticlePhysics Sweep
HelloIs there any way to perform a sweep in the physics of a model?For example: Let's say I want to compare the solutions of a boundary defined as thermal insulation or constant temperature. Can I do...
View ArticleParametric Sweep - Parameter Surface Plots in 2D?
HelloI have done a Parametric Sweep of a Time Dependent study step in 2D.Is there any easy way of plotting Surface plots in a 2D plot group of all the parameters simultaneously without duplicating each...
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