Meshing
Hello, I"m looking for good tutorials for showing the method of "user controlled mesh". I cannot find any good tutorial in COMSOL. Please let me know. Thanks.
View ArticleHow to turn bézier curves into surface
Hi, is it possible to turn a bézier curve into a surface which can be extruded? Thank you for your help. Sandra
View ArticleStructure with 2D and a 1D truss...
Hello all, I am trying to implement this (see attachment). I guess it should be relatively easy, and for sure lots of people know how to do it :). After "spending" quite a lot of time, I decide to...
View ArticleCoupling transient EM and HD calculations
Hello, I am trying to perform 2D-axi transient calculation of time harmonic magnetic field impact on liquid metal. Generally I need to solve Induction eq., derive induced EM (Lorenz) force...
View Articleextracting data from comsol to matlab through mphinterp
Hello, I have implemented the mphinterp function but when I want to extract results for different parameters something goes wrong. My typical comsolfiles look something like this: - In the Study...
View ArticleDefining wires in 3d models
I am trying to simulate a process that includes flow, electrostatics and mass conservation. The model is simply a rectangular. One edge is grounded and the opposite includes 59 wires. The grounded edge...
View ArticleLaminated core
Hello everyone, I’m interested in simulating the induction heating of an object that occurs with the help of a rectangular coil that is placed above it. The problem that I’m facing is that I want to...
View Articleheat transfer / convergence problem
Hi, I have a heat transfer problem where I am trying to solve movements and temperature in oil due to a submerged heat source. It seems that the convergence is a problem. There are several solvers...
View ArticleHow to plot the rms value of the electric field?
I am performing simulations of a three-phase cable in the interface electrostatic (es), and have an interest in obtaining the electric field distribution in the cable, as the simulation is time...
View ArticleClik here to view.
Area terms while using Axial Symmetry
Hello everyone, I have what I beleive to be a somewhat simple question. I would like to model simple heat convection out of a cylindrical wire or water pipe. It really doesn't matter what it is, just...
View ArticleTotal Stress Tensor
Hi I am trying to calculate Total Stress Tensor in a fluid.i know that: Total Stress = -pI+Shear Stress(or viscous stress) I want to know what this pressure is in this equation for moving fluids...
View ArticleComplex valued field in Helmholtz PDE interface
Hello all, I'm working on a model with the Helmholtz Equation interface in 1D. I'd like to be able to make the variable, u, complex in order to get phase information out of the result. I've looked...
View ArticleGenerating UV-Vis Spectrum of spherical nanoparticles.
Hello I am new to Comsol. I was wondering what is the best way to simulate the UV-Vis absorption spectrum of metal nanoparticles, ie Au, or Ag. I understand that I should use Mie Scattering theory. I...
View ArticleMEMS:Microgripper
I have considered a default model in comsol , a microgripper and tried to improve it. As i modified the geometry and simulated it, an error occurred the simulation is complete but the opening never...
View ArticleLid-driven cavity flow (2-D): Visco-elastic materials
Hi, I am trying to model flow of visco-elastic materials (using Oldroyd-B model) in a lid-driven cavity. In this problem the top boundary/wall is sliding, whereas the side and the bottom walls are...
View Articlelid driven cavity flow
Hi, My problem concerns with a square geometry with an oscillating lid. I wanted to know how to give the boundary condition for a wall to oscillate. Thank you in advance Ameya
View ArticleOscillating boundary condition
Hi, How can we impose oscillating boundary condition in terms of velocity, on a boundary of a defined geometry. Thanks in advance Saurabh
View ArticleWhy we need 6000 Volatge for microgripper
In the microgripper model given at comsol website at linkwww.comsol.co.in/showroom/down...e/models.mems.microgripper.pdf It is written to apply a volatge of 6000 Volt.(written on page 2 of the paper)...
View ArticlePDE
Hi All, how I can resolve a system of equation with PDE and algebric equation in comsol? Grace
View ArticleLid-driven cavity flow (2-D):Visco-elastic materials
Hi, I am trying to model flow of visco-elastic materials (using Oldroyd-B model) in a lid-driven cavity. In this problem the top boundary/wall is sliding, whereas the side and the bottom walls are...
View Article