Ko te tātai tahuritanga i waenga i te tere rere i roto i te paipa me te tere rere:
He ōrite te tere rere ki te horahanga whakawhiti-wāhanga o te paipa whakareatia ki te tere rere o te wai.
Me kī ko te tere rere ko Q, ko te diameter o roto o te paipa ko D, ā, ko te tere rere o te wai ko V. Kātahi ka Q = π(D/2)²×V.
Ina ko te waeine o Q ko m³/h, ko te waeine o D ko m, ā, ko te waeine o V ko m/s:
Q = π(D/2)²×V×3600 = 2827×D²×V (m³/h).
Wā tuku: 13 Paenga-whāwhā 2025