using DerivedValues - Surface Integration as objective function
Hello!I have created a model, which solves a structural problem. Geometry in this problem depends on parameter b. I'm calculating maximum von Mises stress in a region using Derived Values->Surface...
View Articleprescribed displacement (point)
HiI used prescribed displacement(point) condition to make a bending modelI have a question about the rotation of the prescribed displacement condition.Is the point free from rotation?or rotation is...
View Articlebottle water impact with floor
HiI need simulate the impact of a water bottle with a horizontal rigid surface because of the gravity, with different indicial condition on the water, like wave in the free interface, vortex, etc. I...
View ArticlePartial differential equations for surface integration.
I am trying to calculate the expression as written in the attached file at a given surface of my electromagnetic simulation. Am i correct in my expansion and how would I then go on to implement this in...
View ArticleAdhesive Contact - Multilinear Seperation Law
Dear all, I would like to model the shear deformation at the interface between two parts. I need something similar to the multilinear separation law, but I would like to be able to extend the...
View Articlesaving a file
I am now working on comsol 4.3 b. My lab has installed an older version of comsol.Is it possible to save my file in 4.3b to an older format?Thanks in advance
View ArticleCNT strain gauge simulation
I am working on a simulation study of CNT composite strain gauge placed on a cantilever beam. My simulation study has piezoresistivity multiphysics. I am unable to get resistance value for my strain...
View Articlepde interface
The below post is related to an archived discussionHello,I am not a professionnal in the programmation but I want an explication about pde interface how to introduce it with comsol.Thank you
View ArticleSimulation of phase transformation inside a moving object
It is necessary to determine the period of time over which the water temperature (the initial state is ice) change from minus 30 degrees Celsius to plus 36 degrees Celsius. Water (the original state is...
View ArticleIs it possible to rotate the material structure for a 2D model in all cases...
I've searched and seen similar questions posted a number of times, but not really answered. And even through the support it was not clarified for me either. The examples given use 3D not 2D models.The...
View ArticleConditional disable of nodes in model tree depending on study.
I have a model containing two studies (Eigenfrrequency and time dependant structural). I use the modal analysis to look at the resonance and then the structural to look at the peak stress with a...
View ArticleCurrent sources with different frequencies
Greetings,I am trying to simulate interferential stimulation, where 2 pairs or more electrodes are applying different AC frequencies. Is it possible to do that in COMSOL? It seems that when I use...
View ArticleModeling circular Halbach array
Hello, I am new to COMSOL and would like to model a Halbach array and corresponding forces on ferromagnetic particles. The magnets in the array are square but pointing in various angles - how do I...
View ArticleCorrosion in GlassFRP bar (non-metallic)
I am relatively new to COMSOL and want to model corrosion in Glass Fiber Reinforced Polymer bar that is kept in a still alkaline solution for certain time. With passing time, gel is formed inside the...
View ArticleHow to use boundary mode analysis in transient of RFmodule？
I made a waveguide before by using boundary mode analysis in frequency domain of RF module.Now, i want to make this waveguide by using transient of RFmodule.But there is no boundary mode analysis in...
View ArticleError in Thermoviscous Acoustics: Undefined variable. - Variable:...
Hello,I am trying to calculate the input impedance of an open tube, so that the viscous and thermal losses due to the boundary layer are included, using the Thermoviscous Acoustics module. The input to...
View ArticleSimulating permanent magnet
I am trying to simulate a permanent magnet block of iron, within a block of air. I defined the iron to have a ramenant flux density of 0.5 T in all directions and added magnetic insulation for all air...
View ArticleMs. Binu
I am able to export only a tiny portion of my geometry into dxf when opened using CorelDraw. My geometry is a spiral structure created using parametric curves. I need to export the geometry to actual...
View ArticleAdditive Manufacturing
How to build a time dependent geometry for Additive Manufacturing? Or simply how to add layers and simulate with a moving heat source?
View ArticleLicense problem in Linux
Hi, there is error of the comsol when I try to launch the comsol?15:04:08 (lmgrd) Starting vendor daemons ... 15:04:08 (lmgrd) Starting vendor daemon at port 1718 15:04:08 (lmgrd) Using vendor daemon...
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