Heat transfer in assembly
Hello,I am working on a simulation of FDM using COMSOL. The geometry I've attached with this discussion is 2D geometry of a simple model which assumes the layer by layer deposition process. I would...
View ArticleBending MicroChannels
Hello,I want to simulate a bending microchannel. In the simulation i want to do a parametric swwep of the bending angle in the range(10,5,180).when creating the geometry of the channel, i used...
View ArticleProblems with geometry quality
Hello. First of all i am fairly new comsol user. Currently i am studying heating of fused silica fibers (https://en.wikipedia.org/wiki/Optical_fiber) for purposes of laser applications. Typical optical...
View ArticleUsing the results from first study1 in the second study2
Hello everyone: In my model, there are two coils with different frequency. The sample is a nolinear one. I want to use the first coil to change the permeability of sample in the first study(time...
View ArticleSimulating a lot of capacitors at once
Hello everyone, I wanted to determine the impedance of a system containing about a million spherical capacitors in a small confined space. How should I go about doing this? An suggestion is...
View ArticleCrater Simulation
I want to do the modelling of crater formed during micro electron discharge machining process. What boundary condititons should I apply? And how should I proceed for the same?
View ArticleMagnetic field
Hllo, I am solving distribution of Magnetic field (mf.normB) using electoromagnet in a mild steel structure. Study is stationary and model is 3D. For 2 A current in parameter I got the solution but...
View ArticleActive Foroum
Is there another active forum for comsol where questions can be answered and discussions can be made ????
View ArticleBig deviation to use the "LMS" and "LMS&MBD" to do the vibration analysis
Hello all,I am confused to use the LMS and MBD method, and this problem has stopped me going further for such a long while. Would any body help me to look at the problem here?My idea and the models...
View ArticleHow can we create the vibration source in comsol ( student version 5.4) ?
i want to do an piezoelectric analysis in the comsol. I performed statinary study as initial part but now i want to give certain frequency at specified interval of the time and want to get the voltage...
View ArticleGravity Varying Boundary Condition with Tilting Angle
Hello Everyone!I want to Model a laminar flow in a channel, which is tilting + and - Theta angles in a certain time period. The flow is gravity induced flow, and I need to plot velocity profiles with...
View Articlemake PARDISO solver by default
Hi all,I am wondering, is there any way to set default solver? Right now it is MUMS (I use wave wave optics module, Frequency domain and Mode analysis), but for my PC it is much faster with PARDISO...
View ArticleCantilever oscillations in liquid medium, damping
Hello, I need to simulate oscillations of the microcantilever in the liquid medium: look at the Eigenfrequencies, and as well at the Frequency Domain. However, I have problems with adding any medium....
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Vector equation that represents conservation of momentum in a CFD analysis.
Hello everyone, I really need your help to identify a caracter in the following equation. What is the I? I assume that is some kind of vector because it is bold, but what is its name and...
View ArticleHow to launch two plane wave sources in wave optics module?
Suppose I want to simulate the E-field in layered medium (e.g. glass-gold-air in Kretschmann configuration for SPP), I normally add two ports, one with excitation on. If I want to launch two...
View ArticleEquation edit question for boundary ODEs
I'm trying to build a boundary ODE for my time dependent heat transfer problem. In my equation, there's a term ZL(t)-y, where y is the position on y direction. What I need here is to make ZL(t)-y=0...
View ArticleYield Stress Calculation
I am an electrical engineering student and don't know much about mechanics. I am simulating a heating circuit similar to the one in COMSOL but with different materials and thicknesses. In the tutorial,...
View ArticleRelative permeability and permittivity for air
Dear all,I have question about air relative permeability and permittivity when we create 2 blocks (layers) that up layer is air?Regards,Mohamamd
View ArticleElectroosmotic Flow in porous media
Hello Community,I am trying to simulate electroosmotic flwo in porous glass frit. I am encountering an issue in interfacing two laminar domains on either side of the porous domain (which is being...
View ArticleAutomatic Remeshing For Deformed Geometry(dg)
I am doing a multi-physical field example, using Automatic Remeshing to prevent grid inversion when the grid is dense. However, after remeshing the grid, the example did not continue to calculate but...
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