Hi all,
I am using Comsol 4.3a and I can't find what's wrong with my use of the frequency response study using reduced model. This is my second post on the subject, as the first one didn't attract much answers...
Attached is a very simple example, where we first compute the first ~10 eigenmodes, then use it as a reduced basis for a frequency sweep.
The model is composed of a rectangular box with a volume flow point source near a corner, and a point were we would like to measure the pressure near another corner. The walls are slightly lossy, with a finite, real impedance.
When running "Study 1", the eigen modes are properly computed, but the output of frequency sweep on modal basis is the null solution for every frequency. No error are notified. The log seems clean too...
Any idea ?
Thx,
Sami
I am using Comsol 4.3a and I can't find what's wrong with my use of the frequency response study using reduced model. This is my second post on the subject, as the first one didn't attract much answers...
Attached is a very simple example, where we first compute the first ~10 eigenmodes, then use it as a reduced basis for a frequency sweep.
The model is composed of a rectangular box with a volume flow point source near a corner, and a point were we would like to measure the pressure near another corner. The walls are slightly lossy, with a finite, real impedance.
When running "Study 1", the eigen modes are properly computed, but the output of frequency sweep on modal basis is the null solution for every frequency. No error are notified. The log seems clean too...
Any idea ?
Thx,
Sami