1D discrete delta interpolation function according to Peskin. Used to interpolate the fluid property of a lattice cell with barycenter xf to the position of a particle xp. Note that this function has a support of 2*dx so requires both neighbor and next-neighbor for interpolation
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=rk), | intent(in) | :: | r_lat |
Distance from particle to barycenter of fluid cell (must be positive) |