Hi,
I have a question that I was hoping someone in the community could kindly help me with.
I am trying to model electron/hole density (two concentric clouds) diffusion with PDE (general Coefficients). The problem is, these two densities are independently diffusing, but since they diffuse at different rates, after some time they exert electrostatic forces on each other introducing a drift term. This drift term is density/time dependent and I am not sure how to include it in the model! Any suggestion would be really appreciated.
I have a question that I was hoping someone in the community could kindly help me with.
I am trying to model electron/hole density (two concentric clouds) diffusion with PDE (general Coefficients). The problem is, these two densities are independently diffusing, but since they diffuse at different rates, after some time they exert electrostatic forces on each other introducing a drift term. This drift term is density/time dependent and I am not sure how to include it in the model! Any suggestion would be really appreciated.