Using different extrapolation methods for computing surface concentration with fvm

[jelc53]

For Lithium-ion Single Partile Model, I am trying to solve with a standard Finite Volume scheme, use third order Hermite extrapolation rather than linear extrapolation to solve for surface concentration (from discrete cell values).

Is there a simple way to do this with the existing api? Alternatively could someone point me to the part of the codebase that selects the extrapolation criteria?

Thank you in advance!

[valentinsulzer]

https://github.com/pybamm-team/PyBaMM/blob/develop/pybamm/spatial_methods/finite_volume.py#L813

[jelc53]

Thank you! Super helpful 👍