【radiofrequency ablation】
I do n’t know why the temperature distribution is incorrect, maybe the boundary conditions are set incorrectly, but I do n’t know how to change
View ArticleSetting up a simple angle-of-incidence electromagnetic 2D simulation
Hello,I am currently trying to figure out how to set up a basic electromagnetic wave propagation experiment hitting a sample at some angle of incidence. The module I'm using is Wave Optics at the...
View ArticleHow to calculate Reaction rate K?
Dear all,I am trying to develop a voltammetric model in COMSOL multiphysics. However I still need to calculate this reaction rate constant K0 for my corrosion reaction and feed it to my model as an...
View ArticleRamsey, Hahn echo sequence
Dear community,I am trying to generate a Ramsey and a Hahn echo pulse as analytic function in COMSOL. Can anyone help me how to input it as an analytic function. What is the right syntax for the...
View ArticleMaking Buffer Solution
I am simulating the degradation of a polymer screw in a phosphate buffer saline solution. How can I make the phosphate buffer solution? Can it be defined in the 'Materials'? Or, I need to make it...
View ArticleSimulation of cell creep
If I want to use comsol to simulate cell migration, how do I do that? Especially cell crawl this respect, have data to be able to draw lessons from?
View Articlehow to plot a charge distribution pictures by RF model？
thanks for reading. i want to know how to plot a charge distribution plot in RF model ,and it may look like that picture i upload follow,possitive and negative charges represented by red and blue .!
View ArticleWhen I change form union to form assembly, I can not get a result, it does't...
we I set the assemble part as a union, i get an answer. but when i set it as assembly, it goes wrong and says "Failed to find a solution. Singular matrix. For mesh-case 0 there are 11217 void equations...
View ArticleVolume contraction in continuous casting mold
Is it possible to model the volume contraction of solidifying steel in a continuous casting mold without the thermal stress/thermal expansion part of the structural mechanics module?The packages i got...
View ArticleAnalytical function in AC/DC source voltage
Hallo everyone, I woul like to use an analytical function (i.e a sinusoidal burst) as a voltage source in the Electrical circuit Physic. Does anyone know how to do it? thank you very much for the help.
View ArticleHowto create a bounded plane in result section?
How to creat a bounded plane in result section?
View ArticleHow to create a cut plane in result section perpendicular to a curve ?
How to create a cut plane in result section perpendicular to a curve ?
View ArticleTE modes in photonic crystal
What should be changed in Band-Gap Analysis of a Photonic Crystal (https://www.comsol.com/model/band-gap-analysis-of-a-photonic-crystal-798) to obtain photonic diagram for in plane electric field (TE...
View ArticleElectric Field Lines Distribution at Tips
Dear All I am trying to resimulate a published paper which I have attached. That is basically showing two electrodes, having nanospikes at one electrode. So the electricfield should be maxmium at tips....
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Mass balance in pipe flow module
I'm using the pipe flow module to solve for advection-diffusion of solute in pipe flow module. I could view the following equations after selecting Transport of dilute species listed in the chemical...
View ArticleInitial values for 2nd time dependant study
Good morning,I made a time dependant study that goes from 0 to 2600s and I would like to add 400s to extend the range to 3000s. I tried to make a new time dependant study in which I change the initial...
View Articlecontact surface between two objects in 3D geometry
HalloI'm trying to make a simulation for electrical aging for terminal In my simulation I have to determine the contact area between two objects to evaluate the contact resistance and here is my main...
View ArticleGetting different results for the same model when I repeat the computation
I'm using version 5.3a to built a multiphysics model in 2D geometry. I noticed when I run the model and save the data results, close comsol, copy/paste comsol file, then clear the study and clear the...
View ArticleParticle tracing for fluid flow
Hello to everyone, I am having a very simple question about particle tracing and i cannot find the answer. I want to calculate the number of particles in an outlet of a tube. To be more spesific i am...
View Articlecan the electric field to continually adapt to the deformed mesh?
Hi,I have created a FSI model with moving mesh, which is using an ElectroOsmotic Flow velocity to deform a solid membrane. The EOF is couple with the electrostatic by E field. And the FSI type is using...
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