KPZ equation with constant term

[ericdumonteil]

Dear all,

I am trying to compare the KPZ equation to the Stochastic Heat equation (which are related by a Cole-Hopf transformation).
On this road, I need to numericaly solve the KPZ equation, to which a constant term is added.

I hence would like to overload the KPZInterface to add this constant, but I am failing to do so.

Does somebody have any hint how I could do that?

Thanks so much in advance,

Eric

[david-zwicker]

There are two simple solutions. You can either copy the KPZInterfacePDE class of py-pde and simply change the respective terms. Alternatively, you can use the PDE class; see the respective documentation. There is even an example of the simple KPZ equation that you can augment.