Equation 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 ArticleDefine an arbitrary EM wave
Hello I am new in Comsol and i have a problem : i want to calculate SAR for SAM phantom for different types of EM waves. but the source of EM waves ( signal generator ) isn't important. is there any...
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 ArticleElectric field lines, Current density lines
Dear All, I have trivial issue. I have model which consists of metal nanoparticles on substrate (RF module). After simulation, I want to plot electric field lines (Ex and Ey component) and current...
View ArticleIs there other software except cosmol can do 3D electromagnetic model analysis ?
hello Charles Johnson, recently ,i have readed your Discussion on comsol forum (www.comsol.com/community/forums/rf-module/thread/39126/).i have met the similar problem with yours ,and i haven't solve...
View ArticleScatterer on substrate problem
Dear all Hello. I'm a beginner of COMSOL multiphysics. I have tried to calculate the effect of nanostructure on light scattering. Based on the user guide, "Scatterer on Substrate", I did it. However,...
View ArticlePECVD: Microwave Plasma convergence?
Hello, I am still fighting for my models to converge, where do I have to look for the trouble? The start is the 2D-waveguide model from the Library. I just inserted an extra substrate into the plasma...
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