Neutral rough-wall drag law. Returns the wall value of the SGS stress tau_xy (and tau_yz), signed so that a positive sample gives a positive stress and hence a momentum sink once differentiated.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=dp), | intent(in) | :: | u_sample | |||
| real(kind=dp), | intent(in) | :: | w_sample | |||
| real(kind=dp), | intent(in) | :: | kappa | |||
| real(kind=dp), | intent(in) | :: | roughness_length | |||
| real(kind=dp), | intent(in) | :: | sampling_height | |||
| real(kind=dp), | intent(out) | :: | tau_x | |||
| real(kind=dp), | intent(out) | :: | tau_z |