Running the simulation for the required time span in more than one times (loops)
Dear sir, My requirement is "Running the simulation for the required time span in more than one times (loops)". I actually do not know the initial values of temperatures of the room that I am going to...
View ArticleCathode and Anode
Hello everybody! I'm creating a plasma with a Inductively coupled plasma and laminar flow interface. I want to put the electrodes (anode and cathode) in the model (within the device) and apply voltage...
View ArticleVibrating horizontal plate.
Good Evening everyone, I have a really simple question, I'm sure someone knows the answer to my problem. I'm trying to make a model of a plate, platform, anything you want to call it, that vibrates...
View Articledesign of one port resonator
I want to design a one port resonator . Please help me in designing the model. Thanks in advance
View Article4 Point Bending of a Multi-Layer Bar with simultaneous phase transformations
Hello all, I have been trying to simulate a 4-point bending test of a multi-layer bar with a geometrically simple 2-d model on COMSOL 4.3a. For the better understanding of the case, The bar consists of...
View ArticleHow can I export my Modell as S Parameter in touchstone Format ???
Hello memebers. I try to export my simulation with comsol 4.3 as S parameters in touchstone Format can Any one tell me how ?
View ArticleSplit Ring Resonator!!!
Hi all, Iam trying to design a Split Ring Resonator(a spiral ) for my project. Iam struggling with it, as iam very new to comsol. Can any one help me how to start with it. To add more it has to have a...
View ArticleCompressible and transient flow problem
Hi, I am trying to model a tank full of air that empties with time through a thin channel (It is almost a nozzle). I used the laminar-transient formulation. I chose from the library the properties of...
View ArticleHow to output results in MATLAB livelink with COMSOL?
A Finite element analysis was done in COMSOL and it was saved as .m file, so that i could run it in a livelink with matlab. The program executed and i got nothing as output i.e. there were no errors...
View ArticleHow to output results in MATLAB livelink with COMSOL?
A Finite element analysis was done in COMSOL and it was saved as .m file, so that i could run it in a livelink with matlab. The program executed and i got nothing as output i.e. there were no errors...
View ArticleHow to define Neumann boundary condition?
Hi, Any body help me regarding Neumann boundary condition shown in this paper. I suppose this problem has been solved in comsol 3.5 by seelecke and presented in boston - 2008 conference. But i am...
View ArticleInverse heat transfer problem
Hello, I need to determine the surface temperature by doing an inverse heat transfer problem method. Experiments are done with impingement of a hot steel plate(900°C) with 3 thermocouples located at...
View ArticleOne boundary with two boundary conditions (Neumann and Dirichlet)
Please help me to understand about this issue. I have a system of two PDE equations with two variables (u1, u2) need to be solved in General Form. On a boundary 1, for example, I set up a Neumann...
View ArticleHow to Improve Convergence in Natural Convection
I am wondering how I can improve convergence in my natural convection model. It is a simple model; an isothermal aluminum plate in water. The model starts out fine but as the run continues (transient...
View ArticlePotential Distribution in AC/DC Module, Comsol 4.3
Hey, i am working with the AC/DC Module in Comsol 4.3. I have a formula for the potential distribution (V) and I want to calculate the electric field by using the relation: E = - grad(V). Are there any...
View ArticleSimulatneous temperature distribution...!
Dear Comsol Users, I am willing to come over to you again, this time with some questions I would like to be enlighted. I've built a 3D heat exchanger (coil) inside a material (cylinder) and with...
View ArticlePML Scaling factor in COMSOL 4.3
Hi, I am doing a 3D simulation with COMSOL 4.3 to find the field distribution and the mode of a waveguide where all the cladding, the core and the substrate have different refractive index. I have...
View Articleproblem of self-defined parameter and build-in variables
I am using poroelasticity module. I have a problem about the self-defined parameter and build in variables. I defined shear modules,G, as a function of axial displacement, w (a build in variable), and...
View ArticleRunning the simulation for the required time span in more than one times (loops)
Dear sir, My requirement is "Running the simulation for the required time span in more than one times (loops)". I actually do not know the initial values of temperatures of the room that I am going to...
View Articlemagnetic forces direction in post-processing
Hi all, I have made a 2D simulation for the stress distribution due to magnetic forces in a synchronous reluctant machine, I want to show how the forces act on the boundaries of the stator teeth and...
View Article