modelling elatic-water interface in Solid Mechanics model
Dear all, I am trying to model a cylindrical phantom which is placed in water under acoustic radiation force. The acoustic radiation force is loaded as a 'body load' which works fine. However my...
View ArticleBending Loss Calculation Procedure For Photonic Crystal Fiber
Hi, I am a new user of Comsol Multiphysics version 4.2. My undergrad thesis topic given by my supervisor is about bending loss calculation using comsol.please help me with the guideline how can i make...
View Articlecopy of part model
Hello. I have two models. And I wont part of one model transferred to a second model. For example, setting drift Difusion DD. Is it possible? And if yes how? Thank you.
View ArticleEigenfrequency of Piezoelectric shunts
Hi, everyone Recently, I try to utilize the coupling modules (Piezoelectric Device+ Electrical Circuit ) to evaluate the eigenfrequency of piezoelectric shunting system. However, I come across some...
View ArticleHow to deal with Contact problems, Adhesion!!
Hello Everyone, I am dealing with the topics of contact mechanics and adhesion. In my case, two surfaces are adhered strongly and I would like to model the detachment of contact or treat it as a crack...
View Articlelarger ICP model causing problems - singularity error
Hey, I am using your thermal_plasma model as a basis to my model. It is almost the same. The only difference is that in my model the tube is straight (not curved) and longer (0.8 m). These are the...
View ArticleCan I use COMSOL to solve integral equations?
Dear all, I have some integral equation to solve. Can I do that with COMSOL or I always need to change it to PDE? Thanks a lot!
View ArticleRuntime of plasma simulation
Dear Sir, We have some test results as stated below after so many attempts on reducing runtime of plasma module for simulating a chamber with CCP type. a. We tested several cases (such as argon_gec_icp...
View ArticleMessage:
What does this message mean: Parametric solver does not support geometry and mesh dependent parameters? It solved me things but not sure if it is correct.
View Article[Please help] Magnetic-structural coupled analysis, result not good,model...
This is part of my thesis. I'm trying to simulate the magneto-structural coupled analysis on a magnetic gear. The attached file is partial of the model. If you have any advice, please see the model and...
View Articleheat transfer coefficients
I'd like to know more about the heat transfer coefficients present in the material library. I see that it depends from the surface temperature, from the temperature at infinite distane and from a...
View ArticleComsol 4.3 with Matlab - ACDC Rotating machinery - Identity Pair
Hi Comsol forum, this is the very first time I open a new thread. I want to share (and I hope to solve) the problem which is afflicting me when I try to run a time dependent problem using Matlab 2012....
View ArticleGraphene in COMSOL?
Hi, I need to build a graphene sheet (for both 2D and 3D geometries) on an underlying substrate for simulating some experiments in COMSOL. Any help on this, as well as subsequent meshing (for...
View ArticleSimulate Joule Heating in a Wire and plot temperature Distribution
I'd like to simulate joule heating in a PVC covered copper wire in air. Then plot the radial temperature distribution across the wire and insulator. I'd appreciate any advice should it be 2D, 2D...
View ArticleOutflow BC - Concentration gradient
Dear all, I am using the Transport of Diluted Species physics. Until now I have always used "outflow" as outlet boundary condition. This means that the gradient of the concentration, at the outlet...
View ArticleApplication of different modal damping constants
Dear all, I have experimentally determined modal damping coefficients. Is that possible to use these modal damping coefficients directly in COMSOL for a frequency response function analysis?...
View Articlenon-linear kinamatic hardening
Hi all, so I am new in Comsol modelling. so I have following problem: I have to simulate a classical thermo-mechanical fatigue problem: with the thermal stress module it is for me no problem to...
View ArticleSolving multiple modules simultaneously.
As the subject states, I am trying to solve two modules simultaneously. The model is of two electrodes with a solution above them. One module is a partial differential equation in place of...
View ArticleFinding current through a surface (electrostatics model)
I have created a project in comsol 3.4 where I am have a material, with electrodes (contacts) at each end. I've created a model, and using the electrostatics model, I've defined relative permittivity...
View ArticleMultiphysics Simulation: An IEEE Spectrum Insert 2013
Hello COMSOL Community! We are happy to announce that "Multiphysics Simulation: An IEEE Spectrum Insert 2013" is now available. This edition highlights innovative multiphysics simulation projects in a...
View Article