Kikokotoo hiki kinafuata Mwongozo wa Marejeleo wa HEC-RAS katika kuhesabu n mchanganyiko wa eneo ukitumia Chow 1959, ukurasa 136, mlinganyo 6-17 (si 6-18).
Ukingo wa jiwe
Tumia Kikokotoo cha Mfereji wa Trapezoidi wa Manning kubuni ukingo wa jiwe. Kikokotoo hiki kinafaa zaidi kwa sehemu za asili.
Velocity check
High velocity implies high specific energy from an available drop. That energy can be lost quickly at expansions, bends, or obstructions. Verify that this is reasonable for the site.