Would you know what is the condition for stability for the advection-diffusion equation where we treat the diffusion part using Crank-Nicholson and the advection part using FCTS (forward in time centered in space)? I am applying von Neumann analysis but I am not sure about the final condition for stability. Do you know where I could find the proof for the stability of that scheme? Thank you
advection diffusion equation
advection diffusion;advection;diffusion