electric field and potential distribution
Hi I have been working on a 3D (AC/DC) model of a insulator, and I am trying to verify the uniform potential and field distribution along the insulator surface. I apply 33Kv voltage at HV end and other...
View ArticleTime dependent alternating temperature/thermal insulation boundary conditions
Hi all, I am trying to setup alternating boundary conditions for a certain boundary based on the hours of each day. My model will run for about 2 months, and I would like to set the boundary condition...
View ArticleAcoutics Module
I am trying to model a sound source (speaker, just a "power point source" now) in a sphere and prove that the sound is concetrated in the center of the sphere. Then I want to add sound treatment to the...
View ArticleComsol Import Module Troubleshooting
Recently I had the IT department set up a single floating license of the Comsol Import Module for my university and I'm having difficulty accessing it. When trying to import .igs or .step files into...
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which coupling operator to use?
Hi, I have the field for two different fibers with slightly different geometries (lets call them E1 and E2). Now I want to calculate the integral: where A is the area of both fibers. I was oriented by...
View ArticleAFM or indnetation simulation
Hello, I want a step by step way of simulation a nanoindenation experiment or indnetation by AFM using Comsol. I appreciate any help... Raed
View ArticleTime marching nonlinear equation by applying a modified Newton algorithm.
Hi, I am using a time dependent temperature function boundary condition for rectangle left side heated wall and would like to solved this problem by time marching implicit scheme, nonlinear system of...
View ArticleTime-dependent Heat Transfer study - strange periodicity
Dear COMSOL users, I'm modelling a (reasonably simple) geometry in which I have a pulsed heat source with a period of 3 minutes (1 minute the source is on and 2 it is off). The geometry is a cylinder...
View ArticleHeat transfer in three blocks
Hello. I have side-by-side three blocks of three difference materials. I want to explore the heat transfer in these blocks when applying a temperature on the surface between the first and second walls....
View ArticleMoving Laser Heating
Hi, I am Trying to simulate a Laser heating of block of steel, the laser moves in a 80 mm straight path. my Problem is, the Temperature is almost steady along the path , for example 200°C [+5,-5], but...
View Articledrying process
Hello user's COMSOL I am trying to simulate a simple drying process with COMSOL , but I have been unable to link heat and mass transfer processes together. With the program, I want to model a porous...
View ArticleHelp needed: magnetostatic force calculation using Maxwell stress tensor
This problem has been bothering me for weeks. I read previous posts on this forum on topic of Maxwell stress tensor but still could not find what is wrong. I'm trying to calculate the repelling force...
View ArticleComsol Rf penetration simulation
Hi Everyone, I am newbie to Comsol and I want to know ' is it possible to simulate the RF signal penetration through different metals using comsol?' I am testing, what different metals the RF signal...
View ArticleCOMSOL Video Player of Displacements (Solid Mechanics Module).
Hello All, I'm new to COMSOL, and I am doing a simulation in which I have a droplet modeled as a rigid body on an truck radiator fin (aluminum) surface. The ultimate goal of the study is to study the...
View Articleheat transfer in non linear system by using time dependent temperature function
Hi, I am solving a heat transfer non linear problem in COMSOL v3.5a. The problem is a rectangle geometry in which a left side heated with time dependent temperature function when time is zero at...
View ArticleVisuals of Magnetic Fields around a cylindrical rod (A Beginner's Question)
This is quite a simple projec I know, and I apologize in advanced for taking away any space that might have been used for a more pressing question. To be quick, I'm working with a professor and he's...
View ArticleWall Condition in Fluid Particle Tracking (fpt) Module
It seems as though the instructions in the COMSOL User's Manual (v4.3) may disagree with the logic in the fluid particle tracking module for the wall condition specification. Before I submit it...
View ArticleQuestion about extrusion model couplings and curved edges
Hi, Does anyone know if it's possible to use model couplings between a straight edge (i.e. a line segment) and a curved edge (so that the variables would be defined along the length)? It seems like it...
View ArticleParameter values in tables first row and first column
I am doing a simulation with two parameters in a Parametric sweep. Lets call these parameters par1 and par2. Then I use a Derived Value - Surface Integration to get a value for every parameter...
View ArticleTransmission througth an inverse opal structure
Dear all I am trying to simulate with comsol 4.3, wave optics module, the reflection from a structure of inverse opal i make the geometry, mesh and material but i can t figure out how to put a source...
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