[Taozi]

Hello, everyone!

I have a quick question, how to specify nonlinear terms in the solver?

For example, I want to solve the KPP equation which reads
U_t = D*(U_{xx} + U_{yy}) + gamma * U * (1 - U)
(an example in matlab is: http://www.mathworks.com/matlabcentr...tent/pattern.m)

In what way should I express the nonlinear term u*(1-u) in the solver, I tried to do this based on the laplacianFoam.C in several ways, but none seemed to work. I was once told openFOAM can only handle linear forms...

Any help would be really appreciated!