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Crashing by meshing + transparency
Hello, when i mesh my object and i get warnings , i want to look for the problem and want to see my object . some of the mistakes are invisible for me so i had to use the function button transparency....
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How to obtain magnetic and electric field distribution
Hi all, My project involves building a coil which consists of a current source going through the inner conductor and closing the loop by going through the outer conductor. -There seems to be an error...
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Manipulation of imported CAD files with Java API
I am using the COMSOL Java API to create an acoustics model programmatically. In the model, I want to import a CAD file (specifically a .sldprt or .asm from Solidworks), and then automatically assign...
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Electric Field
Hello, I make a simulation with COMSOL. I try to find the highest electric field in GIS three phase but I can only determine the electric field at a point that I specified by domain probe. I want to...
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Errors in COMSOL with Matlab
When I launch COMSOL with MATLAB I get the following errors. Have any of you had this problem or know what is wrong? 2016-02-12 00:34:55.590:INFO:oejs.Server:jetty-8.y.z-SNAPSHOT 2016-02-12...
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Asymmetric strain with symmetric materials, geometry and load. Where is the...
I modeled a round diaphragm (a thin disk) in Comsol 4.4 with two different materials: one isotropic and the other anisotropic. For the latter I will need to explore different crystal cuts, therefore I...
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Structural Element Subjected to Dynamic Force
Hey Everybody, I am trying to model two cylindrical concrete elements embedded in an elastic domain from a different material. I want to subject the top of one cylindrical concrete element to a dynamic...
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Piecewise function to define material property
Hi All, I would like to define a material with thermal conductivity (k) that is dependent on both temperature (T) and the absolute pressure (pA) using piecewise function. I know that COMSOL has default...
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Plot of parametric sweep results for a single time
I'm simulating time-dependent laser heating of an object. I plot the temperature vs time at a point probe. Everything is well up to this point. Then I have added a parametric sweep varying the laser...
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Introduction of BEM solver for Acoustics
Hello, I see from the recent presentation by Mads J. Herring Jensen at the COMSOL conference in Boston in October (uk.comsol.com/paper/download/257851/jensen_presentation.pdf) that there is an...
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Meshing error when changing length of model - Internal error in boundary...
Hello, I'm using microfluidics to model a 3-layer device - when the device is 10mm in length, the physics-controlled mesh works fine, but when I lengthen the device (which I need to be able to do), I...
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why is calculated initial value always different from specified one.
Dear All, I faced one problem in comsol. I specified one non zero initial value for a time dependent physics(tds). after solving, in post processing step, When I plot the average value of dependent...
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How is compliance tensor calculated in comsol for isotropic materials?
I have been working on a piezoelectric cantilever. At some point I wanted to see what would be the difference if the piezoelectric material was considered isotropic regarding his compliance matrix...
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Coupling problem and LU factorization error
Hi, I am modelling electrostatically actuated switch in Comsol 4.3. For this, I am coupling electrostatic+ moving mesh + solid mechanics physics. I have to find displacement in plate due to the applied...
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Comsol advice
High guys. I am new to Comsol and was wondering if a comsol simulation will be able to give me the induced voltage on a conductor placed in an external electric field.
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Vectors with random orientation
Hey guys, I'm interested to generate random vectors for the initial condition of my 3D model which is basically for solving time-dependent PDEs. The problem is the components of these vectors are...
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Errors in COMSOL with Matlab
When I launch COMSOL with MATLAB I get the following errors. Have any of you had this problem or know what is wrong? 2016-02-12 00:34:55.590:INFO:oejs.Server:jetty-8.y.z-SNAPSHOT 2016-02-12...
View ArticleClik here to view.
Asymmetric strain with symmetric materials, geometry and load. Where is the...
I modeled a round diaphragm (a thin disk) in Comsol 4.4 with two different materials: one isotropic and the other anisotropic. For the latter I will need to explore different crystal cuts, therefore I...
View ArticleClik here to view.
Structural Element Subjected to Dynamic Force
Hey Everybody, I am trying to model two cylindrical concrete elements embedded in an elastic domain from a different material. I want to subject the top of one cylindrical concrete element to a dynamic...
View ArticleClik here to view.
Piecewise function to define material property
Hi All, I would like to define a material with thermal conductivity (k) that is dependent on both temperature (T) and the absolute pressure (pA) using piecewise function. I know that COMSOL has default...
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