Hi,
I am using the Electric Currents interface to model the flow of current through a material of a given conductivity (rho). I wanted to make this material have a conductivity that would vary depending on the current density that flows through it. So, if no current flows then the conductivity would be some value rho_0 and then as I increase the current to flow the conductivity would decrease, which would in turn decrease the current flow...
I wanted to know if it is possible to do this in COMSOL 4.3a. I'm not too sure if it's possible since in order to calculate the current density from E-field one would need to use Ohm's law and hence the conductivity, which essentially means that I would have to make the conductivity of my material (rho) be a function that depends on the conductivity itself!
I'm curious to see if anyone has an idea as to how I could try to simulate this using COMSOL, and would appreciate any help... Thank you in advance.
I am using the Electric Currents interface to model the flow of current through a material of a given conductivity (rho). I wanted to make this material have a conductivity that would vary depending on the current density that flows through it. So, if no current flows then the conductivity would be some value rho_0 and then as I increase the current to flow the conductivity would decrease, which would in turn decrease the current flow...
I wanted to know if it is possible to do this in COMSOL 4.3a. I'm not too sure if it's possible since in order to calculate the current density from E-field one would need to use Ohm's law and hence the conductivity, which essentially means that I would have to make the conductivity of my material (rho) be a function that depends on the conductivity itself!
I'm curious to see if anyone has an idea as to how I could try to simulate this using COMSOL, and would appreciate any help... Thank you in advance.