coil current
Hi,I am trying to put this current (Picture's attached) and Comsol is giving an error which is "Unexpected unit of input", can somebody guide me?Regards, Hassan
View ArticleUnable to get clear interference pattern.
Hi ! I designed double slit experiment on COMSOL (5.1a) with following parameters; Wavelength= 1550 nm distance between slits= 5 um width of slits= lam/4= 3.875x 10^-7 m I used RF module to solve the...
View ArticleDiffusion
Hi my friends I have a question? how can I model the diffusion on a nanocomposite? infact if I suppose that nanocomposite is a cube with some nano particle on it that nanoparticles are cube too, so how...
View Articleparabolic through solar concentrator
I need some examples of models .mph of parabolic through solar concentrator in which circulate a Heat transfer Fluid.
View ArticleIncorporating Thermoelectric and Solid mechanics Physics together
Hi,I have been working with Thermoelectric generator module design in thermoelectric Multiphysics (HeatTransfer+Electric Current). Its working fine alone and gives result.Next, I tried to tried to...
View Articleseries and parallel electric circuits
how to create series and parallel electric circuit in piezoelectric energy harvesting?
View ArticleHelp needed!!!
In the case of a high-temperature proton exchange membrane fuel cell, the interface inlet conditions for rich mass transfer only define the mass fraction of the components of the inlet gas, and the...
View Articlehelp needed
Is the multi-component Maxwell transfer equation suitable for dynamic studies? Can COMSOL do fuel cell dynamics research?
View ArticleModelling a beam incident on an absorbing-scattering media
Hi, As the title suggests I am trying to model a beam incident on (a small portion of) an absorbing-scattering media. The problem is I can see 2 possible routes to achieve this but neither really...
View Articlemissing heat transfer modules?
Hello,I am unable to add thermoelectric physics to my simulations, and there is no option for it in my COMSOL. attached is a picture of the options i have.Does this mean that my institution did not buy...
View ArticleDefining a probe location using variables
The below post is related to an archived discussionHas this issue been sorted? In my case too, I need to define a probe with respect to a moving mesh, and my version of COMSOL (5.2a, Build 199) cannot...
View ArticleA problem when modelling EM wave's interaction with material whose...
Hello everyone, I am doing a 2D time domain simulation now. The system contains two layers, the top is air and the bottom is a mateiral whose permittivity changes in time and is step-function like (I...
View ArticleHow to remove auto boundary divisions on 2D objects?
Hello,If you create a circle, it seems that the boundary circle is automatically divided into 4 quadrants and the arcs are numbered using a default numbering scheme.My questions are: - Can we turn the...
View ArticleJoule heating
I am trying to find the the thermal effect(temperature distribution) of current passing through nickel-titanium alloy wire embedded in a pdms material. But I get the following error : {Segregated Step...
View Articleslip flow through porous medium
how is slip velocity option in wall boundary condition supported on boundaries that are adjacent to a fluid and matrix properties domain????>>>>>>how????
View ArticlePermanent magnet, B-H curve, Saturation
I am modeling a thin plate on top of which I place a permanent magnet (2D model)-My objective is to change the permanent magnet magnetization M until I see saturation in the plate (This is to study...
View Article3D Plasma Simulation Tutorial
I'm trying to learn how to build a 3D plasma simulation as noone in my group is good at doing it. Its been a while (2 years) since I used COMSOL but I'm at least comfortable with making the geometry...
View ArticleError in MATLAB after a new domain in created after MATLAB processing
I am running COMSOL with MATLAB. I exported a model the mph file as m file in MATLAB. This is followed by the required running of loops in MATLAB. This was successfully implemented and it worked; but I...
View ArticleDiffusion following concentration gradient in mass transport physics
Hello, I am setting up my model using transport of diluted species. I am simulating in a way that after certain time (24hr) my boundary concentration changes from 100 nM to zero. I used a step function...
View ArticleUsing lumped boundary condition for twisted cables
Hi COMSOL-user,I'm new to COMSOL. In the Tutorials I cannot find any example for the usage of the Lumped Port boundary condition as I need to (I might have missed some), so I decided to pulish my...
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