Discussion Forum

I attempt to model a hybrid system in which a fluid pass by a micro-channel. Around the micro-channel there is an inductance (copper coil) and a capacitance.

The fluid is studied with the spf. physics, and the value of the inductance is calculated with the mf physics.

It is supposed that the fluid has micro and nano molecules, and therefore I am using the cpt and fpt physics, but I have not been able to to the following:

*Assign properly magnetic permeability to the molecules.
*Assign magnetic charge to the molecules.
*Unite the cpt and fpt in such way that Comsol understands that it is necessarily to study the same particles under the electric and fluid world simultaneously.
*The system is supposed to be a sensor, therefore the whole idea is to identify changes in the value of the capacitance and in the inductance as a function of time (or the amount of particles that pass by the sensor), but I cannot use properly the feature "field-particle interaction in order to identify how the molecules affect both, magnetic and electric fields inside of the micro-channel.


As an other solution, I tried to move a single particle using fsi, but it seems necessary to assign a fixed point to the particle, and hence the particle does not move.

Please give me some advice,

Thank you for your assistance,
Greetings,
ABM.