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Looking for someone with Comsol experience

Dear all I need some Comsol models to do in the next month. I don't have much time and experience to finish all so I am looking for some help. The simulation must be in the Ac DC module to model the...

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Comsol 3D Simulations Memory Requirements

I am simulating inductor coil with shielding and square surrounding the arrangment. While solving the problem in 3D I am getting this error, for this much of DOF how much ram I would need to compute...

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Magnetic Fields: 2D Axisymmetric Model of Toroid Inductor

Hey guys, I want to determine the inductance of a toroid core + winding as shown in .jpg I specify an external current density, such that the current flows around the core (in r and z direction). Under...

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comsol not using the entire memory

I have 32GB of ram on my computer with an 8 core cpu, but the transient solver im using does not go beyond 7gb and my processors running between 40 to 60%. I looked upon a few threads on the forum but...

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Time dependent material properties

Hello I'm trying to make a simplified thermal model of a Li-Ion battery. I'm using the Joule Heating model and a time dependent study. I want to model the State of Charge with either an integration of...

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How to combine PML and Port together By Comsol 4.3

Hi, I am simulating the surface plasmon resonance. I use pot to set the incident TM plane wave. It looks that there is still some reflection from my port boundary. I want to add a PML to absorb the...

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comsol run very slowly with 200 materials

HI I am doing research on electrical resistivity tomagraphy. I tried to use comsol. But it run very slowly when i have more than 200 materials. In my model, I have 216 blocks with 216 kinds of...

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Error about "unsupported operation of this type of object"

Hi all, I am trying to import a .stl file (scanned from microCT) to 3D geometry and then try to build a block outside. When I formed the two parts into a union, this error happened "unsupported...

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Encountering error during meshing

when I try to run a mesh i encounter the following error message: "Edge is much shorter than the specified minimum element size." I do not know what this means and any advice on how to get rid of this...

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Thermoelectric Model

Dear All, I am looking to find and study example models relating to thermoelectric effect modeling using COMSOL. Does anyone have any reference source/model on thermoelectrics which could be used ?...

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Electric Field Simulation Problem

Hi, I am trying to create a plot of electric field, but i failed to do it. I created a simple model of column, and I used the physics of "Magnetic and Electric Fields". I defined a electrical potential...

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Thermoelectric PDE mode

Hello Sir, I am a new user of COMSOL. Currently I'm working on a model for a thermoelectric generator using PDE mode. After done with the layout, in the post processing result the temperature profile...

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Thermoelectric Effect - Adding the physics

Hello, I'm working in a project on thermoelectric generator. As 'Thermoelectric' physics interface,is not in the physics area/physics list, I was trying to add the physics using the steps given in the...

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Thermoelectric Effect

Hello, I'm working on Thermoelectric Generator and I would like to have a basic model with the equations used in COMSOL, Could anyone who worked in this field, please help. With Regards . Pheba

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Synchronous machine (torque)

Hi, I am new to COMSOL. I am tryng to build three phase synchrnous machine model. I have applied three phase voltage to the machine but unable to generate torque in a machine, I do not waht is wrong...

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Is it possible to couple two modules?

Hi, I am simulating an open water channel (0.31m x 6m x 0.4m width, large and height) with k-e turbulence model. The boundary conditions are: walls and floor as wall function, upper boundary as open...

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curve cylinders

How can I draw a system of curved cylinders intertwined to form a portion of capillaries?

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Heat Transfer through 2 physics / Coupling 2 physics

Hello! Im trying to figure out how to couple the modules "Heat Transfer in Solids" and "Heat Transfer in Porous Media". I made a simple example. Two blocks on top of each other. On Block has a heat...

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Extracting data during simulation for each iteration

Hi, In my model, I want to have the amount of pressure at specific grid points (1D model) at each iteration, and use this value to manipulate another variable which is used in the next iteration. I was...

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1 Week Early Bird Reminder: Submit your work at the COMSOL Conference 2013...

Dear COMSOL users, We are 1 week away from the Early Bird Abstract Submission Deadline! Do you have any work using COMSOL you would like to present? Already I have received some interesting and...

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