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Cell constant of an irregular shaped object
Dear all, Is there a way to calculate the cell constant of an irregular shaped object using COMSOL? Thanks, Daniel
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No change in a time dependend model. Where is the fault?
I tried a very simple model: = 3-D cylinder from = copper (from the builtin material library) with an = initial temperature of 293.15 K = insulated at all surfaces, with one = heated bottom surface at...
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Particle tracing: timing issues
Hello, I have created a simulation suite that calculates the electrostatic field of a given device and traces particles through this field. Since none of the available particle release nodes suited my...
View ArticleClik here to view.
Time dependent fluid problem
Hi I am trying to model a time dependent flow of a newtonian fluid in 2D. The geometry I'm using has sliding walls which cause a flow to be established. The aim of using a time dependent simulation is...
View ArticleClik here to view.
RF module : refractive index
Hello dear. I'm a student of physics. The topic of my thesis is about Optical Filters. I use the COMSOL Multiphysics v. 4.3 for simulation. So I work with RF module. I have designed an array of Optical...
View ArticleClik here to view.
Running two GUI's to utilize remaining memory
COMSOL Community: I currently have a frequency-swept simulation running that comprises 30GB physical /41GB virtual memory, off of an 8-core, 128GB system. Even though a sweep in off-normal incidence...
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Time dependant Structural Mechanics & Magnetic Field
Hy Can anyone please let me know that is it possible to simulate time dependant magnetic field when force or some external conditions are there in which geometrical position of the shape is changing....
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Parametric sweep : Can I bypass (ignore)the error occuring for a particular...
In coupled MEMS electrostatic study, I defined two parameters: Vdc and InitialGap. These two parameters were used for parametric sweep on the electromechanics module of Comsol 4.3. Now Comsol runs my...
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Integral Boundary Condition - Problem
For the sake of simplicity, I'll use an example of stationary heat transfer in a 2D geometry. My goal was to create a boundary condition such that the total flow of a boundary in the z-direction had a...
View ArticleClik here to view.
coordinates of geometry objects
Hi all! How can I access the coordinates of geometric objects/domains for using in an expression? Alternately: how can I use distance of a domain or primitive center from a plane in an expression?...
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Creating Geometry in Autocad for COMSOL - 3dface - surface problem
I have a very complex geometry to be analyzed in COMSOL that can best be modeled by Autocad using 3Dfaces. After composing the model in faces I used the converttosurface command in Autocad, this is how...
View ArticleClik here to view.
Cell constant of an irregular shaped object
Dear all, Is there a way to calculate the cell constant of an irregular shaped object using COMSOL? Thanks, Daniel
View ArticleClik here to view.
No change in a time dependend model. Where is the fault?
I tried a very simple model: = 3-D cylinder from = copper (from the builtin material library) with an = initial temperature of 293.15 K = insulated at all surfaces, with one = heated bottom surface at...
View ArticleClik here to view.
Particle tracing: timing issues
Hello, I have created a simulation suite that calculates the electrostatic field of a given device and traces particles through this field. Since none of the available particle release nodes suited my...
View ArticleClik here to view.
Time dependent fluid problem
Hi I am trying to model a time dependent flow of a newtonian fluid in 2D. The geometry I'm using has sliding walls which cause a flow to be established. The aim of using a time dependent simulation is...
View ArticleClik here to view.
Meshing problem
Hi everyone! I am using Comsol 3.5a and cannot figure it out, how to mesh this attached model ... I tried everthing from free mesh predefined mesh sizes (all of them) to boundary layer mesh but I'm...
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RF module : refractive index
Hello dear. I'm a student of physics. The topic of my thesis is about Optical Filters. I use the COMSOL Multiphysics v. 4.3 for simulation. So I work with RF module. I have designed an array of Optical...
View ArticleClik here to view.
Running two GUI's to utilize remaining memory
COMSOL Community: I currently have a frequency-swept simulation running that comprises 30GB physical /41GB virtual memory, off of an 8-core, 128GB system. Even though a sweep in off-normal incidence...
View ArticleClik here to view.
Integral Boundary Condition - Problem
For the sake of simplicity, I'll use an example of stationary heat transfer in a 2D geometry. My goal was to create a boundary condition such that the total flow of a boundary in the z-direction had a...
View ArticleClik here to view.
coordinates of geometry objects
Hi all! How can I access the coordinates of geometric objects/domains for using in an expression? Alternately: how can I use distance of a domain or primitive center from a plane in an expression?...
View Article