Coupled magnetic and solid-mechanics simulation
I have a question about coupling a magnetic study to a solid mechanics study. I attach to this email a simple model to explain my question. In the model you can find a permanent magnet with a round...
View ArticleHow to 'fill' the space between two parametric curves.
Good morning, I'm trying to make an S shape drawing to my model that consists in two rectangles and 4 parametric curves ( forming 2 semi-circles). But when I make the extrusion the parametric part of...
View ArticleResonating magnets
Hi folks, Me and my team-mates are working on a project and we now need to simulate a design we made. We have a tube with a length of 10cm and a diameter of 2cm. At both ends of the tube, say x = -5cm...
View ArticleHow to use stationary solution as initial value for 2nd time dependet study?
Hello Everybody. I’m using comsol 4.3a. I try to use the solution from study 1 (stationary heat transfer) as the initial temperature value for a second time dependent study. Further a new geometry...
View ArticleSimulation of third order nonlinearities such as four wave mixing in silicon...
Hello; I myself think that simulation of nonlinearities is possible by COMSOL. However, I have not tried it until now. The question in my mind is possibility of launching several fields (several...
View ArticleDrawing a sinusoidal wave in COMSOL
Hello; How can I draw a sinusoidal wave as a part of a geometry in COMSOL? Thanks for your help. Sincerely; Uldouz
View ArticleSolid Particle motion in microchannel
Hi, I'm currently working on a project where I need to simulate the thermal effects that a moving particle has on a surrounding moving fluid due to a heater situated at the base of a microchannel. For...
View ArticleEfficiency of solar panels – transition line
I want to calculate the efficiency of solar panel, I know that the answer need to be approximate 15% because this information I find in the website of one company that manufacture the solar panels, but...
View ArticleChemial Engineering, Mass Transfer, Diffusion
I'm simulating the dissolving process of a sphere like droplet in another liquid. The droplet it composed of S and P. S can dissove into the out phase liquid W, while P cannot and stay in the droplet....
View ArticleNeed help regarding use of optimization tool for inverse heat transfer problem
Hi, I have just started using "Comsole V4.2a". Can anyone provide me any tutorial regarding a simple inverse heat transfer problem ? The problem may be finding out thermal conductivity k, using known...
View ArticleQuestion about example- "Plasmonic wire grating"
Dear all: I have a question about the example "Plasmonic wire grating". In this model, I saw that the Floquet boundary condition applied at the left and right boundary is that kF=kax (wave vector),...
View ArticleInitial Conditions for Sine-Wave or More complex disturbances
Hi Everyone, I have reviewed previous posts in Comsol forum about I.C . One of the suggested ways of applying the I.C was to do a stationary analysts before the time-dependent one. (This can be true...
View ArticleDC discharge dc.de_4
Hi, I am starting to use the plasma module and I am currently having a look at the DC discharge example (www.comsol.com/showroom/documentation/model/8640/). During the model set up the value of the...
View Articlethermally resistive layer
Hi everyone, I am modeling a pipe with fluid circulating within by coupling heat transfer and fluid flow and the pipe diameter is defined in the geometry section. i need to define the pipe wall...
View ArticleHow to display "Cut Point 3D" data sets?
Hi there, I want to simulate and visualize discrete measurement points which I import from another application as distinguished "Point" objects in the geometry of my 3D-model. So far I've created a...
View ArticlePart of module
Good day. It is possible to create a report in which it was shown as part of the model? Thank you.
View ArticleSurface temperature dependent heat transfer coefficient
I'd like to apply a convection heat transfer boundary condition to the attached problem. Currently I am using a constant convection coefficient (h=10 W/m2K) on the interior gypsum surface. I have...
View ArticleCoupling plate and acoustics
Hi everyone, I'm trying to model a axisymmetric disk in 2D which is actuated with 40kHz in the middle in axial direction which gives a pressure wave in the surrounding air. The air is represented by an...
View ArticleParameters in file name
Hello all, I am in a situation where I need to work with 40 or so parameters, and as a result when I export my results from a parametric sweep (with parameters appended to the file name) the file...
View Article3D meshing of thin layers
Dear all I want to mesh a 3D model using different layers with various thicknesses. I used Free Tetrahedral meshing but for the thin layers (about 100 um in thickness) in the model the following error...
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