Magnetic Force on an armature
Hello I'm dealing with a very simple problem that has been very frustrating for me! I would appreciate if any one can assist me with that. I'm modeling an E-shaped core in 2D magnetic field module. It...
View ArticleShallow water waves model in coefficient PDE or general PDE
Dear All, I want to solve the Shallow water waves equations in PDE module in 2D. h is the water elevation, U and V the velocity components along x and y. How can I implement an incoming pulse in the...
View ArticleWavelengths seen in 2D plots
I am simulating the intereaction of EM radiation with a plasmonic element. I have set up the study to parametize the wavelength of the incoming radiation from 4 um to 20 um. In looking at the fields in...
View ArticleElectrode- Electrolyte Interface / Double Layer Help
Hello Guys I was wondering if anyone here has any experience modelling the electrode- electrolyte interface? To start with Im attempting to create a 2d two electrode model measuring the potential...
View ArticleCylindrical geometry
Hi there, I'm trying to model RF coils for MRI with Comsol, and I'm not finding it terribly easy to create the actual geometry. As can be seen in your example...
View ArticleBirefringence
Can any one help me to provide the answers of the following questions. 1. Provide a detailed physics on the pitch dependence of birefringence. 2. Please provide a detailed physics behind the increasing...
View Articlehiger order modes
How could i find the higher order modes using comsol 4.2 version. Samiul
View ArticlePacked bed mean field model
Hi, I am trying to solve the time-dependent concentration profile in a packed bed using the mean field theory rather than the whole CFD definition of the problem. The mass giving rise to the...
View Articlethin layers
Dear all, I am analysing the waves induced inside a thin layer using a shaker. I apply a sine wave on one of the edges and the analysis is in the time-domain. I am using Comsol v4.0. Altough I am using...
View ArticleCOMSOL Conference Boston 2013 - One month away from Early Bird Abstract...
Hello, I hope you are as excited about the upcoming conference season as I am! As a reminder, the Early Bird Abstract Submission Deadline for the COMSOL Conference Boston 2013 is June 21st, exactly one...
View ArticleContact penetration
Hi I have a contact model and there are two domains that one moves with a prescribed displacement and presses down the other one. I have a contact pairs, but the results seems like one domain...
View ArticleIncorporating Lagrange Multipliers
Hello again, Thanks to the help of those on the forum I was able to incorporate weak constraints to get accurate flux calculations in my diffusion models. However, I am trying to understand how exactly...
View ArticleDeformed Geometry
Hi all, I have a lo of questions and responses related to that but I haven't been able to find a proper solution to the problem I have. Basically, I have a first geometry (domains 1 and 2) which is...
View ArticleCAD IMPORT AND MESHING ERROR
Hi everyone, i m trying to import a .sat file to COMSOL. But after applying meshing at the time of applying stationary study an error is displayed i.e. I am trying to Failure to find a solution...
View Articlearea changes when going from 2D to 3D
When drawing a circle the are changes when going from 2D to 3D in a 2D drawing or in a plane a circle is drawn with radius (57,61/2)[mm] resulting in a surface of 0.002602m² when extruding this plane...
View Articlemodeling of airlift reactor
Hi everyone, I have building a model to simulate airlift reactor for vaccine production. I had following the "modeling of airlift reactor" in model library COMSOL but I can't input mass balance to get...
View ArticleArrow color
Hi, all I plotted principal stress volume. So, I have three color arrows; red blue green I know that they represent the eigenvectors of stress tensor. What I want to know is their eigenvectors' color...
View ArticleModeling a Kerr Effect
Hello. I want to model a material with birefringence that depends on the electric field inside the medium, similar to the Kerr effect where the index depends on the square of the field. This is...
View ArticleHarmonic Load
Hey, I'm new to COMSOL and I have a few questions about it. I'd like to do a Frequency Response Analysis of a structure with a harmonic load ''shaking'' it with a pre-determined force and frequency ,...
View Article"zero length" element
I am trying to model a bolt connection in an assembly. In order to do so I would like to place a node at the center of where the bolt hole should be (all bolt hole cutouts have been eliminated) and...
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