Extract electric field at a surface in 3D model and then re-import it back as...
I am trying to extract the electric field of a surface in a 3D model and reuse it as a source to excite new fields. The problem is we can extract the field of a 2D surface, but cannot import the...
View ArticlePCF was designed, the electric field is out of core
when i simulate it on comsol version 5.3a, the result of mode analysis and electric field is not proper. The electric field is totally out of core. Hereby, I attached the image
View ArticleThermal Stress
I am trying to find thermal stress using COMSOL for layered structures. Does anyone has helpful material instruction file or video ? other than this...
View ArticleHeating a axisymmetric bed with a power source
The system I am dealing with is heating a packed of bed of adsorbent material 17.7% by volume and having 7% by volume of metal fibers packed inside it. The axisymmetric bed of 0.1016 m radius and...
View Articlehydraulic head contours in COMSOL
Deal All, I would like to know if it is possible to import ground water hydraulic head contours into a comsol subsurface model and if yes how would that be implemented within the Darcy's Law...
View ArticlePDE
hello，everyone： i am doing arcing modeling ,four physics,i want to use PDE equation for heating node,but idont know how to define PDE,hope to your help ,thanks!
View Articleporous to solid phase change
Is that possbile to model a phase change from porous powder to solid when melting and then still in solid state when cooling?
View ArticleStress linearisation along any arbitrary path
Hello, I wonder if there is a means to do stress linearisation during post processing along any arbitrary path intersecting the structure? The existing stress linearisation node allows selection of...
View Article2D Darcy's Law Model
I am currently doing a research and for this research I want to model the intrusion of air into concrete. Mainly researching the intrusion depth as results of the applied pressure difference. For this...
View Articlehow to add both intial stress and voltage to one model
Dear friendsI want to do a electromechanical simulation including two parts. The model is just two connected aluminum plate with large magnitude (200 um) in x y axis and very small (0.2 um) in z....
View ArticleModeling Cathodic Part of a Cell
I am a new user of Comsol Multiphysics software. I've started my MS in Mechanical Engineering at Northern Illinois University from this fall semester. I want to know where to start to model a cathode...
View ArticleNeed help in selecting physics modules for simulation
Hi,I was wondering if someone can give some insight on building the simulation for my model. I'm trying to simulate a pneumatically controlled finger and see how it moves based on the external pressure...
View ArticleHow to convert 3D sweep geometry in 2D
Hello everyone, Could you please tell me how can I convert 3D sweep geomtery into 2D or 2D axissymetric? I want to make tortuous uniform diameter pipe in 2D. I want to change my tortuosity each time...
View ArticleTrouble understanding Heat Flux integrals
Hello!I am working on a model that involves heat flux, with conduction, convection and radiation. In the model I have to compare the losses over the outher boundaries. After running the model, which is...
View ArticleUsing arbitrary samples for Point Source in Acoustic Module
Hello all,I would like to use arbitrary samples for the Point Source in Acoustic Module. To do this, I used used-define type for the Point Source and tried to load the samples from the table (f)....
View ArticleAdd different color for same domain for better simulation
Hello there, I am facing a problem, where I cannot find an option to change the fluid domain color to 2 different values. I am simulating the flow over a cylinder with splitter plate. Now when vortex...
View ArticleBattery charging using Tertiary Current Distribution interface
Hello guys:I was trying to simulate the charge curve for a solid electrode using the tertiary current distribution interface. I found an article and check the file but still don't know how to change it...
View ArticleParticles dissapearing after bounce
The below post is related to an archived discussionHi all,I tried to model inelastic wall bounces in te particles tracing module, by implementing the formulas in the archived post above. However when I...
View Articleerror n periodic boundary condition
I am trying to simulate a simle geometry but having error " Incomplete selection for periodic condition" kindly help
View ArticleSimulation of a tandem solar cell (I-V curve)
Hello everyone,I'm trying to simulate a multi-junction solar cell in 1D. First, I have simulated the three subcells individually and obtained their I-V curves. Everything was ok, both short-circuit...
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