error " Reached end of data when reading"
Hi, I faced a very strange error related to my COMSOL files. The problem is, when I save a comsol file, I cannot open it again. The message error is “Reached end of data when reading”. I’m sure that...
View ArticleModeling Multi-turn circular coil
Hi, I would like to model a multi-turn circular coil as shown in the picture. However, i am confused with the modeling procedure. My objective is to perform RF coil simulating in Comsol. As that i am...
View Article3D RF Module Calculation on Multiple Cores
I am planning to build a computer for running Comsol, and was hoping to find out how well Comsol can utilize multiple cores for RF Module calculations. The most demanding calculation that we would like...
View ArticleFlouquet periodicity on Eigenfrequency analysis 3D
Hi everyone! I'm trying to obtain dispersion curves for a 2D periodic structure in 3D. Already build the geometry (basically a ball inside a box), assigned the materials, and set the Flouquet...
View Articleautomatically shutdown
Ivar, Hi, this is Zhengliu from UCLA. I got to know you from the COMSOL forum, where you have been active in giving professional advice on many aspects. I really hope you could give me a hand regarding...
View Articlekerr effect
Dear cchriste thanks allot for these informations, i am trying to simulate a silicon waveguide: brillouin scattering, but really i do not know how to find the scattered field inside the waveguide,...
View ArticleRF Module: material dispersion for transient simulations
How do I simulate structures with dispersion using the transient solver in RF module? I am new at this, so any examples or step-by-step tutorials would greatly be appreciated.
View ArticleRF Module Mode Analysis Study for 3D Metal Cylinder Waveguide
Hello Forum, Thanks in advance for reading and potentially responding with thoughts. I am trying to model a cylindrical metal waveguide, and in particular, I want to solve for the mode shapes. This is...
View ArticlePCF, FSM mode index
Hi, Have u found the FSM mode index. I am also trying to find this. If you solve this problem please let me inform. Thanks in advance.
View ArticleHow can I find eigenmodes propagating in given direction?
Hi! I have a general question about eigenmode problem in RF module. How can i find only eigenmodes propagating in given direction? For example, let's consider an infinite number of parallel cylinders...
View ArticleCluster computing got stuck :external progress scheduling
Dear Mr. Shuhong, While trying to solve a particle tracing model on a 3 computer cluster (1 headnode running Windows Server 2008 R2 and 2 compute nodes running Windows 7) via HPC Server 2008 R2 Pack ,...
View ArticleHow to add a padlock in wave equation,electric?
Hi Everyone, I was exploring comsol 4.2a. faced a problem in applying it. As can be seen from my attach file, there is a small difference between the two Wave Equations.There is a padlock in the second...
View ArticleTransmission spectrum for optical waveguide
Dear Sruthi R, I just came across a post you made in which you question about a method of obtaining the transmission spectrum of a device. Did you figure out how to do it? Could you share a .mph in...
View ArticleTransmission spectrum for optical waveguide
Dear Frédéric Peyskens, I just came across a post you made in which you question about a method of obtaining the transmission spectrum of a device. Did you figure out how to do it? Could you share a...
View Articlecomsol 4.3 vs comsol 3.5a
hi, I am trying to reproduce a tutorial "Band gap analysis of Photonic crystal" in comsol multiphysics. This tutorial has been carried out in COMSOL 3.5a but I am trying to reproduce this result in...
View ArticleMesh Control and Periodic Boundary Conditions
Are mesh control boundaries compatible with faces that are part of a periodic condition? I have a mesh I'd like to optimize with the mesh control operations but so far I've noticed that if the mesh...
View ArticleAcoustic Band Structure of Metamaterials
Hi folks, I have been trying to find the band structure of an acoustic metamaterial. I have been attempting to adapt the "Bandgap analysis of Photonic Crystal" tutorial given for COMSOL 3.5a to 4.3. I...
View ArticleEquation editing in Structural physics in Comsol 4.0
Hi Everyone, I was exploring comsol 4.0. I found that the GUI is good but some functionalities in 3.5a are removed. I wanted to edit the Structural physics equation system to suit my PDE. In comsol...
View ArticleMMI waveguide design...using PML
Hi, I'm new to COMSOL, attended one of the workshops and have been going thru the tutorials. I'm trying to design a slab waveguide...with a core refractive index of 3.48...cladding of 1.54....about...
View ArticleEigenvalue Calculations In RF Module With Perfectly Matched Layers: Radiation...
Hi everyone, I have one part general info that maybe others will find helpful, and one part question. Here goes: I've been trying to compute the eigenvalues of dielectric GaAs disk structures (embedded...
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