Generation of a Bessel Beam Using an AXICON Lens.
Hello,I am looking foward for ideas as to how to generate/make an AXICON (conical lens) in COMSOL and using a source as Gaussian beam (GB) with a specific wavelenght (1064 nm). And hwo to generate a...
View ArticleCoil Electromagnetic Heating: Import Voltage Vector like Voltage Source
Hi,I am working on a coil design to simulate the temperature distribution.I am working in a 2D-ax model, which contains the concentric cylinders. I have the voltage that support the reactor (coil with...
View ArticleThermo-mechanical model of a Laser beam Welding process - convergence problems
Dear Comsol community,I´m struggling a lot with my model, as it keeps failing due to convergence problems. My goal is to calculate different reaction forces on clamping devices during laser beam...
View ArticleExpression dialog box problem
Hello COMSOL community,Recently, my COMSOL Desktop 5.3a has some problems with the input into the expression dialog box. When I type some contents, e.g. a number into the Parameters->Expression, the...
View Article"Mode Phase" in Periodic Port?
Hi,I want to know how we should set a right value for "Mode Phase" parameter (circled in the attached picture) when defining a periodic port in analysing a periodic structure?I have a problem that is I...
View ArticleQuestion about the Application builder
Hello, I would like to get an evaluated value by the « global evaluation », in the “results” section, into a variable defined in the application builder, section “methods”.Please see the atatched...
View ArticleHow to export a deformed shell?
Hi,Is there any way to export a bent shell from a structural mechanics simulation? I really need to know how I can do so? Remesh deformed configuration just works for solid and not the shell. Do you...
View ArticleRight Mesh for surrounding space of metal sheet, to check skin-depth effect...
Hello, (My problem .mph file is attached) I'm using AC/DC Module>Magnetic Fields, to simulate the problem, where I have metal sheet (e.g. aluminum) placed underneath a source of magnetic field...
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SOFTWARE IS NOT INSTALLING
Recently I changed my Operating System to Windows 7(32 bit) . The comsol software is not getting installed. What could be the reason. It gives some error message as shown in the image!! Please help me...
View ArticleJob opportunity _Sr. R&D Modeling & Simulation Engineer
I am actively looking for a candidate to immediately fill the position. If interested email me your resume to: sohan.birla@conagra.comJob DescriptionUses modeling and simulation techniques to drive...
View ArticleHow can i obtain imaginary and real part of surface eddy currents ?
Hello,I switch Physics AC/DC>Magnetic Fields and then for Study I switch Frequency Domain.But when i come to post processing to anlyze my results i want to see surface eddy current density imaginary...
View ArticleGeometry dependent upon variables
Hello,I have a 2D axisymetric Solid Mechanics simulation. I have a geometric boundary that changes with applied force. Can I make dependency between geometry and variables in Comsol?Thank you in...
View ArticleParticle photon(using DAC converter connected with 2 Wire Speaker) + play...
Hey I have two Wire speaker which I wanted to interface with Particle photon using DAC, I wanted to play audio files through smart phone wireless and listen to the output through 2 wire speaker...
View ArticleDielectrophoretic Force Model problem
Hello, I am trying to do a DEP simulation in Comsol 5.2a and I want to apply an AC signal of 90V-pp 3KHz in a pair of electrodes.I am presently using AC/DC model , I try to use Particle Tracing for...
View ArticleLamb wave propagation
Hi, I am working on lamb wave propagation in steel plate. I am using comsol 5. In attachments you find the propagation of A0 lamb mode in plate with symmetric internal rectangular defect. After the...
View ArticleModeling electrodes in coductive tissue
Hi everyone,I´m trying to model a "communication channel" inside human tissue. A silicon cylinder with a copper electrode on the top and bottom is set up as a transmitter. At a different position, the...
View ArticleSupercapacitor
Hi. I'm trying to model a microsupercapacitor in COMSOL 5.3 in order to study the effects of various electrolytes on the electric field produced between ions and electrode during charging/discharging...
View ArticleDifference between Elements and Basic Material Properties - Library material
Hello everyone,I'd like to know what is the difference between Elements and Basic Material Properties. For example, if I consider the Silicon, its heat capacity in Elements is indicated with...
View ArticleIntegration Constraint in Multiphysics
Hi,I would like to solve a PDE on a 2D grid for a single variable in Multiphysics under the constraint that the integral of this variable on this domain be some constant.I have looked into how to do...
View ArticleOptimization related problem
Hi, I'm doing an optimiazation for a beam with piesoelictric on top of it, I'm optimizing the shape of the beam using shape optimisation to get the maximum EMCC, in the optimiazation settings I want to...
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