Diffusion equation with non-constant diffusion coefficient


riskassessor
11-16-2008, 10:28 PM
Equation 20.2.1 is the diffusion equation with diffusion coefficient D.

The chapter says let's start by considering D (the diffisuon coefficient) as a constant. As far as I can see, it never goes on to consider non-constant D. Could someone point me to a method of solving the equation where D is a function of u?

Saul Teukolsky
11-17-2008, 01:08 PM
Take a look at for example equations (20.2.19) and (20.2.22).

Saul Teukolsky