Failed to find consistent initial values.
Hi. I coose frekvenci transient study and get thise error. Failed to find consistent initial values. Last time step is not converged. THANK
View ArticleImporting parameterized geometries?
Hey Guys, I'd like to import geometries used in a previous model which are partly defined with parameters (certain distances, lengths, radii). Is it possible to import an existing geometry into COMSOL...
View ArticlePlotting Current
I have a system consisting of 2 electrodes in a box. I selected the medium in the box (on top of the electrodes) as Water. Now I want to plot the electric filed and the current between and above the...
View Articlehow to track a single particle among surface injection in particle tracing model
i am trying to understand the relationship of particle's initial position and it's movement i used mesh based injection for the inlet. does anyone know how to track a single particle among hundreds of...
View ArticlePN optical modulator
Hello, I am a student in TUD and I have started to work with COMSOL. My task is to model and simulate PN silicon optical modulator. I am using Semiconductor module. I have couple of questions I would...
View Articleshear stress in microchannel
Hello, I am clueless as to how to start the post-process data analysis to get the spatial distribution of shear stress of a micro channel. I have read the few discussion threads but it involves...
View ArticleAnimation Scale Factor
I'm trying to create an animation of my simulation. Every time I create it (under Report > Animation), the scale factor is reactivated to some arbitrary value EVEN if I deselect it or specifically...
View Articlehalbach array 8 magnet
Hej! I made 3D model of Halbach array 8 magnet circular used NdFeB magnetic with 0.5 tesla magnetic strength. Moreover, choose AC/DC module static magnetic field with no current. I am getting error...
View ArticleCalculating of torque
Hi I have COMSOL 4.2a and I'm new in COMSOL. I'm simulating in AC/DC module Switched Reluctance Motor and I need to calculate torque of rotor and build plot of torque depending on angle of rotation. In...
View ArticleAccess values of one model in the other
Dear all, is it possible in post-processing, to access all the models that are stored in a .mph comsol file? I have a file that contains two models (with exactly the same geometry) and would like to...
View ArticleDeformation of a dielectric material by laserbeam
Hello, I want to simulate the deformation of an elastic spherical dielectric object with properties like optical density, elasticity, viscosity,... (eventually surrounded by water) and it should be...
View ArticleHow to best use Views in COMSOL?
The "Views" feature has been bugging me because I feel like I must not be utilizing it correctly. One thing I'd often like to do is save and lock a particular view in which a select group of domains...
View ArticleHow to insert a line break in a COMSOL plot tile ?
Hello I have a question,: how to insert a line break in a plot tile in COMSOL v4 ? there are several html tags accepted (see the help) but I cannot figure out the "line break" and my usual "old...
View ArticleControling camera position in 3D animation output
Is it possible to control the camera angle in an exported animation? It would be nice to have an animation with the camera circling around the geometry....
View ArticleMaterial colors
Hi, how do can we add colors to materials? I would like the copper to be brown, epoxy green and so on. It makes things much easier to understand that I assigned the correct materials to each domain....
View ArticleSymmetric meshing
Dear all, I'd like to learn if it is possible to have symmetry axis in mesh. I'm working on a 3D model, and the geometry is symmetric in both x and y axis. I'm studying on eigenfrequency analysis and...
View ArticleHelp with simulating condensation from a partially filled closed glass vial...
Hi! I am having trouble with a condensation simulation. A closed glass vial at ambient temp is partially filled with 10 degC water. When it is put in a cold room with temp of 5degC, condensation...
View ArticleMagnetic Flux Function
Hello, I'm working with the magnetic fields, no currents module to create an axially symmetric model. I'm verifying past work done by a colleague. He used another program to plot the flux function of...
View Article3D Symmetry of Model
Good afternoon all, I am modelling two electrodes (tips facing each other) and the electric field between them. There are two Z-axis layers to each of the electrodes, measured in nanometers, whereas...
View ArticleIntegrate extra dimension
Hi, All, I am modelling an LED using comsol and currently facing a problem of integrating an extra dimension variable over the base geometry which is a 2D square. The extra dimension variable is...
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