Clik here to view.
Joule Heating - Resistive Heaters
Hi, I've built a COMSOL model that models the joule heating of electrodes that are designed to heat up channels in a microfluidic device. I am able to choose a V0 (input voltage) run a transient study...
View ArticleClik here to view.
Interpolating 3-D data
Hi all I am trying to use some 3-D data i.e. temperature profile across and x and y surface. The data is stored in and excel file. I want to interpolate the data to form a function as T = f(x,y) and...
View ArticleClik here to view.
Import from SolidWorks
Hi, I was following the tutorial for the cooling of an injection mold (www.youtube.com/watch?v=JyXhGKN3iX0), and I want to ask is there any way to import the curve for the cooling channels directly...
View ArticleClik here to view.
Planar Capacitor Sensor: Simulating two dielectric layers in Series
Hello All, I have a little dilemma. 1) I have built a model of a 'Comb shaped' capacitor sensor and simulated using COMSOL which worked great, I simulated changes in water level in a PVC container the...
View ArticleClik here to view.
Displacement Field
Hey: I would like to know what is the difference between Displacement field and Displacement gradient. I developed a poroelastic model to simulate a reservoir in the soil.
View ArticleClik here to view.
Magnetic shielding
Hello, Can someone tell me if I make a magnetic shielding by selecting the boundary's and specify a thickness (ds) and permeability on some wires it would be the same as if I just created a shield in...
View ArticleClik here to view.
Magnetic shielded room made from Al in real magnetic field
I need some help, I want to model a 3d shielded room 12mm thick (2mx2mx3m) placed in real magnetic field (geomagnetic, frequency range 0-300Hz). When I select the AC/DC model, magnetic field, frequency...
View ArticleClik here to view.
coil above ferrite bars
Hi all I want to simulate the structure of two coils of first coil is placed on ferrite bars and second coil is simple coil which both are separated by distance of 10 cm . I tried to construct the...
View ArticleClik here to view.
problem meshing thin layers
Dear All, I have trouble meshing my geometry(attached). My geometry consists of very thin layers(0.1mm). After reading some discussions i tried many options like giving small element...
View ArticleClik here to view.
Calculating the Electric Field by applying a potential
Hello Everybody, I want to simulate the following problem: I have a geometry (for simplicity assume it is e.g. a box) which is hollow (there is a vacuum inside), and the boundaries consist of some...
View ArticleClik here to view.
anisotropic material
Dear All, I would like to build an RF wave guide that consists of three regions the left and right are made of air and the middle is made of an anisotropic material where epsilon (permittivity) is...
View ArticleClik here to view.
How to make a vacuum chamber in a capacitor?
Hi, I am trying to model a MEMS capacitor built on the silicon substrate. The thin top plate(membrane) of the capacitor is also made of silicon. The gap between the plates is vacuum sealed. So with...
View ArticleClik here to view.
Magnetic field density more than saturation
Hi all, I'm modeling a power inductor in comsol 4.3. I'm shocked when I saw a magnetic field density of 40Tesla in a soft Iron (with loss). I was wondering if anyone knoes the reason.
View ArticleClik here to view.
S parameter and shielding effectiveness of RF wave incident on perforated plate
Hello: I am brand new with comsol. I would like to simulate the transmission and/or attenuation(shielding effectiveness) of the electric field passing through a perforated (circular holes) metallic...
View ArticleClik here to view.
Joule Heating - Resistive Heaters
Hi, I've built a COMSOL model that models the joule heating of electrodes that are designed to heat up channels in a microfluidic device. I am able to choose a V0 (input voltage) run a transient study...
View ArticleClik here to view.
Large deformation of a 2-D square
Hello All I am trying to apply a large shear strain on a square domain. The geometry is very simple, just a square where on the upper and lower edges, opposite velocities are applied. In order to...
View ArticleClik here to view.
Simple heat module problem
Hello, I have been using COMSOL for a while now, but this is the first time I have had to use the heat transfer module. I could attach my model, but I feel the problem is simple enough not to require...
View ArticleClik here to view.
Help!!!! How to define such indicator temperature, Tp
Dear all, I'm now using Comsol to simulating 3D heat transfer problem. I want to define an indicator temperature Tp in the domain that records every point's maximum temperature the point has ever...
View ArticleClik here to view.
Moems Fabry Perot Pressure sensor
hi.. i am trying to simulate the structure something like attached figure. what i need to do is apply sinusoidal excitation (of resonant frequency of whole structure ) at the base (lower layer) of the...
View ArticleClik here to view.
Line Graph using expression for x-axis
Hi, I am doing magnetic field simulations to validate analytical models. For this I need to have the line graph of the radial field in the airgap for example. This works fine, as long as I plot it over...
View Article