How to define a new PDE

[shensummer]

hello,I am want to define a new PDE in your code, How can I reach my goal? Thanks for your time.

[i207M]

You can refer to some examples in src/pde/poisson.py.

PINNacle/src/pde/poisson.py

Line 8 in 60fc2d9

class Poisson1D(baseclass.BasePDE):

0. Inherit from baseclass.BasePDE.
1. Define self.output_dim, self.bbox, self.geom. bbox is a list of numbers, and geom is an instance of deepxde.geometry.
2. Define a pde function which will be used as the pde loss. Also do self.set_pdeloss(num=<the number of pdes>).
3. Define boundary conditions. We support multiple types of bcs. See

   PINNacle/src/pde/baseclass.py

   Line 104 in 60fc2d9

   def add_bcs(self, config, geom=None):

4. Finally, set reference solution. This can be done by either self.load_ref_data(...) or self.ref_sol=<reference function>.

Feel free to ask if anything is not clear.