Thanks Durk.
I will check with moving mesh and also check with the example..
Thanks for your valauble suggestion.
Regards,
Laveen
Dear Laveen,
Please take into consideration the electric currents interface solves an ordinary diffusion equation (Poisson's equation or "heat" equation), for current conservation.
It treats the medium as well as the electrons as a continuum. Quantum mechanical effects like tunnelling are not included. At best, the electric currents interface, combined with solid mechanics and presumably, moving mesh is able to model an increase in conductivity just because the material is squeezed, resulting in a thinner insulator between your conductors. This should be a more-or-less linear effect.
Even so, the insulators and conductors are treated as a continuum: It's a macroscopic approach.
Please check if this is applicable in your case. Otherwise, it might be useful to investigate a Quantum approach. Perhaps the following tutorial model may be of use to you: www.comsol.com/model/conical-quantum-dot-723
Lastly, you could consider mimicking the tunnelling behaviour by including a strain dependent conductivity or something like that. It's a simplification, but perhaps it's good enough.
I will check with moving mesh and also check with the example..
Thanks for your valauble suggestion.
Regards,
Laveen
Dear Laveen,
Please take into consideration the electric currents interface solves an ordinary diffusion equation (Poisson's equation or "heat" equation), for current conservation.
It treats the medium as well as the electrons as a continuum. Quantum mechanical effects like tunnelling are not included. At best, the electric currents interface, combined with solid mechanics and presumably, moving mesh is able to model an increase in conductivity just because the material is squeezed, resulting in a thinner insulator between your conductors. This should be a more-or-less linear effect.
Even so, the insulators and conductors are treated as a continuum: It's a macroscopic approach.
Please check if this is applicable in your case. Otherwise, it might be useful to investigate a Quantum approach. Perhaps the following tutorial model may be of use to you: www.comsol.com/model/conical-quantum-dot-723
Lastly, you could consider mimicking the tunnelling behaviour by including a strain dependent conductivity or something like that. It's a simplification, but perhaps it's good enough.
