Problem
I am desigining a capacitor. I need to plot capacitance vs separation between two plates. 3D plot is generated for all the values of parameters. But now i want to generate 1D plot between capacitance...
View ArticleMoving Mesh and gravity falling
Hello,I would like to make a dynamic simulation using moving mesh. To start, I just wanted to make an iron sphere falling. I used moving mesh(ale) and global equation (ge) to define the speed and the...
View ArticleIs it possible to simulate the erosion of soil particle in dam problem?
I want to simulate the erosion of soil particle due to steady state seepage. Is it possible to do it in comsol ? If yes , please let me know how. Thanks
View Articleinput 3D polarization into comsol model
I am doing a 3D wave optics modeling, and want to use a 3D polarization. For 3D polarization I mean I want to give every point in a 3D domain an arbitrary polarization. Is there anybody who knows how...
View ArticleApplying transient electric field to a fluid dynamic simulation
I am currently attempting to simulate a droplet of conductive fluid moving through an electrical field. The droplet is moving correctly over time, however from what I can tell the electrical simulation...
View ArticleExporting plots from parametric sweep with variable filenames
Hi,I'm running a large parametric sweep over a variable - let's call it 'a.' There's a 1D plot that I've defined in "Results," and for each of the runs in the parametric sweep, I'd like to...
View Articleequation in frequency domain
Hi, Is there anyone who can tell me that from where can i get the reference of equation (Under Study 1, frequency domain.) which are given in comsol "ewfd"....i have attached the image ,,,please see...
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Strange Issue in Nonlinear Viscoelastic Solid Mechanics Simulation
Good Afternoon Everyone,I am attempting to implement a predictive model for Viscoelastic deformation in COMSOL. To do this, I have derived several models from fundamental continuum mechanics, but I am...
View Articleimpedance vs freq plot
Dear All, I want to plot the response of my interdigitated electrode as an impedance vs freq plot. Any insights on how I should proceed with the same would be greatly appreciated. I tried Results>1...
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Export Comsol Simulation result to Comsol geometry
Hello,assuming I have a stationary heat transfer simulation with some arbitrary boundary conditions.What I want to have is the polygon tracing the interface layer between elements that are of phase 1...
View ArticleHow to save data from parameters to a .txt file?
Hello! I have very simple comsol application with two input fields. I want to save this data to a .txt file. I have tried to use JFileChooser from javax.swing but in my case comsol has displayed an...
View ArticleHow to solve "Feature: Stationary Solver 1 (sol1/s1) Attempt to evaluate...
Hello everybody, I’m working on a simulation of a tubular reactor for secondary reforming. Since my 3D simulation run resulted in error, I decided to face the same situation with a 1D model, but the...
View ArticleEigenfrequency, frequency domain, frequency domain modal and mode analysis...
Hi,Could someone please explain to me what's the difference between eigenfrequency, frequency domain, frequency domain modal and mode analysis studies?I'm preparing a setup and I'm not sure which...
View ArticleHow to simulate water falling under gravity and impinging on a curved...
Hello,I am attempting to simulate water, flowing out of a hole/slit, at the bottom of a tank (under the influence of gravity); entering into a domain (vertically downward), that contains air, and...
View ArticleEquivalent to Conductive Media DC model version 3.4 in Comsol 5.3a
Hi, I have an issue for calculating the current in ground and i want to know the equivalent for the old model Conductive Media DC model version 3.4 in Comsol 5.3a..Kindest Regards Samar
View ArticleSaving file between runs in a parameter sweep?
The IT department where I work is a stone wall that will not budge. I run a simulation over the weekend, come in to find my computer had been restarted by automatic updates and now I have to start...
View Articleboth shells and solids
Hi How i can model the viscoelastic sandwich plate (top and bottom layers are elastic, and core is viscoelastic) using both shells and solids.
View ArticleIntegration operator on element level???
Dear all,I want to integrate the independent variable on each element, rather than on the whole geometry. But there is no corresponding operater in COMSOL. Does anyone have experience about that? Would...
View ArticleA problem about the well boundary condition in the Darcy's law module
There seems to be a problem with well boundary conditions when simulating reservoir production processes by the Darcy’s law module. I assigned Neumanna boundary conditions (constant mass flow) to the...
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