Temperature mapping with Model Coupling
I wish to generate temperatures in a model and subsequently map the temperatures them to a similar model in a different study. The two models will have the same geometry. However, the model will be...
View ArticleSimulation of the magnetic fied
Hi, I have one physical NdFeB magnet and I need to simulate this magnet in Comsol 4.2a, but I dont know exactly how to do it. I know these parameters of the magnet: Remanence Br = 1380 mT Coercivity...
View ArticleEvaluate the electrical voltage from the magnetic field (mf) physic
Hi ! I need to calculate the electrical voltage of an electric conductor subdued to a magnetic field. The conductor is excited by a current density using magnetic field physic (mf). I want to simulate...
View ArticleLaminated core
Hello everyone, I’m interested in simulating the induction heating of an object that occurs with the help of a rectangular coil that is placed above it. The problem that I’m facing is that I want to...
View Articlesinusoidal voltage to time dependent solver
I am trying to apply sinusoidal voltage to a model with time dependent solver. I apply the voltage based on a function but it doesn't show anything. the model is attached. thanks
View Articleconstraining the range of dependent variables
Hello, I have implemented an axisymmetric drift-diffusion equation using the equation-based modeling interface in COMSOL 4.3 (incorporating the necessary terms due to the curvilinear coordinates). I...
View ArticlePerforming mathematical operations on the data exported from COMSOL
Hello, I have completed a simulation on Microwave Imaging in COMSOL and have exported the Normalized Electric and Magnetic field. As further processing steps I need to perform Integration, gradient,...
View ArticleHow do I move the location of Legends in a Line Graph?
It is by default in the upper right corner, how do I move the location of the Legend? I am using COMSOL 4.3
View ArticleParallel computing MatLab Comsol
Hi, I am using Comsol 4.3 with Livelink for Matlab. I run an optimization code in Matlab where i call Comsol to perform frequency response simulations. Now i would like to start two parallel frequency...
View ArticleFinding ratio of two variables of two different domains
Hi every one I have two domains . I have to find the ratio of two variables. For example Variable 1 at domain 1 and variable 2 at domain 2. Now I need the ratio of Variable 1 and variable 2. Further I...
View Articleinterference between two waveguides
Hi, I am a COMSOL beginner. I want to see the interference between two waveguides. It is simple. There are two waveguides. And laser inputs are on the end of the waveguides. So I need two inputs. By...
View ArticleCOMSOL License Error -15, 570
Dear COMSOL team, We purchased a 64 bit COMSOL 4.3 verson of software along with a server license. After installing the software on a Linux (Debian 6 Squeeze) based system. We are encountring the...
View ArticleImplementation of an Initial temperature field using a previously obtained...
Dear all; I found that Comsol allows a simple equation for the initial temperature field such as T=sin(xy). But, I can not find how to implement some complicated temperature field as an initial...
View ArticleSeperating geometry
I have a very simple model a cube inside a cube, but I cannot apply different materials on them. I want to seperate two cubes so that I can apply two different materials to them.
View ArticlePoblem with simulation
Hello all I build a solar collector whith COMSOL 4.3 by using Heat transfert in fluid. The model run well but whe I want to increase the air gap between the glass and the pipe the temperature of the...
View Article1D plot of some points
Hi everybody, I have one problem in my model: I want to plot(1D POINT PLOT) the temperature of some points but if that point is not a node i don't know how to select it.. The geometry and the points i...
View ArticleComsol 4.0
Yesterday I got a copy of the trial version of Comsol 4.0 at an on-campus workshop, with all the modules. My very first impression after spending all of maybe three hours with it: It's going to take...
View ArticleEvaluate total force acting on a body
Hi everybody! I made a simulation of a rigid 3d body moving inside a fluid at constant velocity. I used the Stationary Laminar Flow study. Everything works fine, but now how i can find the total force...
View ArticleMeshing
Hello, I"m looking for good tutorials for showing the method of "user controlled mesh". I cannot find any good tutorial in COMSOL. Please let me know. Thanks.
View ArticleBoundary condition coordinate system in 3D CFD model
Hi Folks, I would like to change the coordinate system for the velocity of a sliding wall boundary condition in a 3D CFD model (in COMSOL 4.3). Thanks, Tim
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