Perform WENO7-JS reconstruction on the supplied stencil.
Applies WENO7 reconstruction component-wise to a 7-point stencil.
Stencil indices 1..7 = {v_{i-3}, ..., v_{i+3}}, centre at index 4.
Substencil approximations (Balsara & Shu, 2000): q0 = -(1/4)v1 + (13/12)v2 - (23/12)v3 + (25/12)v4 q1 = (1/12)v2 - (5/12)v3 + (13/12)v4 + (1/4)v5 q2 = -(1/12)v3 + (7/12)v4 + (7/12)v5 - (1/12)v6 q3 = (1/4)v4 + (13/12)v5 - (5/12)v6 + (1/12)v7
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=wp), | intent(in) | :: | f_stencil(:,:) | |||
| real(kind=wp), | intent(out) | :: | f_hat(:) |