E-field enhancement
Hi, I read "Near-fields in Arrays of Triangular Particles: Coupling Effects and Fields Enhancements", I added this file. In this article, I am very interesting "using COMSOL part" because I exactly...
View ArticleNon - Isothermal Flow (nitf)
Sir, I have assigned materials to the domain elements that are required. And, in the step of inspecting the physics part after assigning materials, it is again asking for domain selection. What does...
View ArticleUsing saved solution Comsol v4.1
hi, I want to use the saved solution for the initialization of the second one. for example I solve my problem with a given boundary condition and I want to increase the boundary value for the next...
View Articleconvert imported *.stl into solid
I am importing a rather complex geometry into COMSOL from Solid Works. After some tinkering with the import controls, I managed to import the object but I do not think COMSOL recognizes it as a solid....
View ArticleFace Cannot Be parameterized
Hi all; I try to import a STL file to Comsol 4.3a but this error appeared "Face Cannot be parameterized"? Any help? Thanks in advance :)
View ArticleStraw Poll: Who would like to see the model gallery documentation overhauled???
Hello all, I thought I'd post this here to get the community opinions before suggesting it to support. If I want to learn how to use an aspect of Comsol I work through example models and I visit the...
View ArticleUsing step function in kinetic reaction simulation
Hi I am trying to simulate the kinetic reaction of biomolecule interaction in fludic channel expecting to have association and dissociation phase (concentration of complex versus time) in the same...
View ArticleElectrostatics and Electric Circuit
I am relatively new to COMSOL. I am trying to simulate a two part problem. 1. An electric pole is placed underwater 2. A circuit is built around it to measure the voltage drop across a resistor The...
View ArticleMeshing Internal Volume of CAD import
All, I am trying to model fluid flow inside of a CAD object. How do I create a domain inside the object that I can mesh? I have capped all the openings. Thanks, John
View ArticleConvergence issues in time dependent moving mesh simulation
Hi all, I'm simulating the evaporation of a sessile droplet (2D-axisymmetric model). The droplet is very hydrophilic and has a very small contact angle (picture attached). The coupled physics are: 1....
View Articlecalculating scattering and absorption cross section of gold nanosphere in...
Hello, I'm working on Comsol4.3a these days, and this is my first time using this software. Actually, I started with building the " Optical Scattering Off of a Gold Nanosphere" model, as it is...
View ArticleIntegration Coupling Variables
I am trying to find the volume of a spherical shell using Comsol 4.3a in a 2D axisymmetric coordinate system. I attempted to do this by creating a integration coupling variable along the boundary of...
View ArticleProblem with meshing
Sir, While meshing my model, I am getting an error message as follows "Out of memory for mesh processing". What does that error mean and what are the correction requirements??
View ArticlePlease send me tutorial for ultrasonic wave propogation through liquid
I need tutorial on Ultrasonic wave propogation through liquid.
View ArticleEigenfrequency and Temperature in a Cantilever
Hello, I'm using COMSOL for some months. I'm simulating the eigenfrequency of a clamped-free beam (cantilever MEMS). The value of the eigenfrequency at room temperautre is correct (about 6.4MHz) but...
View ArticleDubinin Sorption Model on Dual Porosity System
Hope this message finds you all well. I have a little technical question. I am currently trying to build a dual porosity model using the earth science module of comsol multiphysics 3.5a. However, I...
View ArticleQuestions of the modelling of a light bulb using Heat Transfer Module
Dear all: Now I am trying to carry out some simulations using heat transfer module. To start with, I downloaded the "free convection in a light bulb" model, which can be obtained from:...
View Articleimport a bmp image into COMSOL geometry
Hey, as stated in this webpage: www.comsol.com/products/formats/ Comsol can both read and write few types of images. However, when I tried to import a bmp image as my structure for flow simulation, it...
View ArticleCoupled magnetic and solid-mechanics simulation
I have a question about coupling a magnetic study to a solid mechanics study. I attach to this email a simple model to explain my question. In the model you can find a permanent magnet with a round...
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