# pfss

pfsspy.pfss(input)

Compute PFSS model.

Extrapolates a 3D PFSS using an eigenfunction method in $$r,s,p$$ coordinates, on the dumfric grid (equally spaced in $$\rho = \ln(r/r_{sun})$$, $$s= \cos(\theta)$$, and $$p=\phi$$).

Parameters

input (Input) – Input parameters.

Returns

out

Return type

Output

Notes

In order to avoid numerical issues, the monopole term (which should be zero for a physical magnetic field anyway) is explicitly excluded from the solution.

The output should have zero current to machine precision, when computed with the DuMFriC staggered discretization.