Get results while solving
I am doing a flow problem with turbulent flow thorugh a pipe. I would like to get results while solving, that is the velocity plot. I have checked the box in the study note to get results while solving...
View ArticleAcoustic S Parameter Calculation
Hi, I am trying to obtain the variation of the refractive index(n) and impedance (Z) for a unit cell of a periodic structure. For this, I am using the Pressure Acoustics, Frequency Domain module in...
View ArticleDisplay mesh elements on profiles
Hello, I'm using Comsol with the solid mechanics module. From my system, I get strain profiles along cut planes, which displays a smooth rainbow of colors. I'd like to know how I could display the...
View ArticlePlot scattered electric field incident on a particular side of a given line
Hi All, I'm trying to run a simulation of an electromagnetic wave scattering. This is what my geometry is like: A 2-D rectangular domain is aligned with its longer side lying vertically. This rectangle...
View ArticleI really need help with this question! Please
I am soooo stuck with how to draw 2D cut lines from (b) in this solution set. I know its probably something really simple but its driving me crazy. I really don't know how to define the zeta cut lines...
View ArticleMicrowave heating module - Microwave Oven, time varying frequency source
Dear all, I'm almost new in comsol and I'm not very practice with this software. I'm training with the Microwave Heating module, in particular I'm evaluating the behavior of the microwave oven...
View ArticleEfficient time-periodic steady-state analysis using Optimization Module?
To compute phenomena like the eddy currents induced in the rotor of an electric machine at steady state (or an induction motor at steady-state), a full transient simulation is normally needed. Because...
View ArticleUsing both Cartesian and cylindrical coord. sys in a model
Hi, In my model, I define a few boundary conditions in Cartesian coordinate system. I was wondering whether the other variables that I define, for example for Domain, must be in Cartesian as well. In...
View ArticlePlot at time 0
Hi, I just found that the results of my simulation at t=0 are not exactly the ones that should be. I mean those results are for a time step that is really small after time=0. You agree that time=0 is...
View Articleaccessibility of mphdev files?
Hello, is there a way to look behind the model libraries physics? can we look into the mphdev files? I am interested in the mwp and dc models of plasma. For now I tried to add just some DC potentials...
View ArticleRunning a .class file without re-solving the model
I have a 3D model which takes a long time to solve. I need to export a lot of data sets from the model, so I want to to save the model as .java file and use this to edit export options instead of using...
View Articleport boundary condition vs. PML+port boundary condition
Hi all, I get different results when I use port boundary condition and PML together than when I only use port boundary conditions for input and output. I've calculated transmittance and reflectance and...
View ArticleComsol 4.3a Memory problem -- not using enough RAM
Hello everyone, Usually the complain is that Comsol is using too much memory, but in my case its other way round. I have a really nice machine in the lab with windows 8 server. I have Comsol version...
View ArticleContact problem. Static vs Dynamic
I have an impact model; steel presses down soft tissue. I can solve this model in static analysis with prescribed displacement. But when I solved the model in dynamic analysis with prescribed velocity,...
View ArticleTwo solids in contact with relative movement
Hi I was wondering if there are any comments on the problem that I am working on it at the moment. Basically, consider two solid cylinders (like piston and cylinder) that the first one is moving inside...
View ArticleSpecifying maximum tensile strain in Comsol
Hi everyone, My question is on material properties available in Comsol. I'm using the solid mechanics module of Comsol, and the analysis type is stationary. Currently I have included an elasto-plastic...
View ArticleParticle energy distribution
Hey Comsol gurus, I am trying to simulate complex particle distributions in electric and magnetic fields. The mf and es parts are working quite nicely but I am experiencing some difficulties setting up...
View ArticleParticle Tracing Plot
Dear Comsol Community, I am simulating particle tracks in a mass spectrometer. I would like to know the particle positions after they exit the magnet, i.e. when they hit a screen. I would like to make...
View ArticleLinear Boundry Load
hi, My model is a simple square geomechanical model. I am going to apply a linear boundary load along the right side of square but there is no option for doing this. Could you please help me with this....
View ArticleB-H curve for Soft Iron
Hello there ! I am about to use (soft iron) as a core for a saturable device . I need to specify the H( knee) & B(sat) points, but the listed values of B & H in the BH curve seem to away...
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