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Announcement Announcement: COMSOL Multiphysics 4.3b is now available

Hello COMSOL Community! Five new modules and a tremendous number of new features and enhancements are ready to be applied in your models and simulations. Release Highlights are available at www.comsol.com/products/4.3b The...   Read more »

Posted 2 weeks ago

Installation error

captainmariah

Hi, I am trying to install 4.3b version. After installation and starting up the program I get the following error: License error -15.   Read more »

Posted by captainmariah 2 hours ago

Plot

Michel Roy

Hi everybody I simulate the rib waveguide with mode analysis and in picture i attack it ,is a 3D plot. I want to convert it to 1D plot in x and y direction.How can i do it?I think it is so easy but i dont know how can i...   Read more »

Posted by Michel Roy 2 hours ago

Nano Optics - Single dipole near infinite interface

I am trying to reproduce far field radiation patterns for single emitters close to an infinite dielectric interface. Namely, I place an emitter in air, in the vicinity of a glass substrate (10[nm] above). The dipole moment is...   Read more »

Posted by Jean-Christophe Lavocat 3 hours ago

PML and RF Module

Tobias Zederbauer

Hi, I am trying to find the eigenmodes of a grated ring waveguide. To do so I simulate a segment of the ring and use periodic boundary conditions. Since light should be radiated upwards and downwards PMLs should be added to...   Read more »

Posted by Tobias Zederbauer 5 hours ago

How to use compressible gas flow .

Nitin Sharma

Hi I am trying to find a module for doing the analysis of a gas flow in a little 2-d chamber where I am using a compressible gas at a predefined pressure from a tank ranging from 3-6 psi-g at the inlet and the a shower-head...   Read more »

Posted by Nitin Sharma 7 hours ago

Capacitive sensor - coupling with circuit

Rüdiger Hansen

Hello, I build a small model of a capacitive sensor (small conducting plate). An electric dipole serves as the source of an electric field. The field induces a surface current density at the sensor plate. But i cannot...   Read more »

Posted by Rüdiger Hansen 13 hours ago


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