Kikokotoo cha Bure Mtandaoni cha Mfereji wa Mkato Usio wa Kawaida wa Manning

Acha wasiwasi wako mlangoni; hapa upendo unasemwa. Huharibu kila kitu. Furahia zana za bure za HawsEDC AutoCAD pia.

Kikokotoo cha Mtiririko Sawia wa Mfereji wa Mkato Usio wa Kawaida wa Manning

Vikokotoo vinavyohusiana: Mtandao wa Usambazaji Maji · Mfereji wa Trapezoidi wa Manning · Mtiririko wa Bomba la Manning · Mtiririko wa Kizingiti cha Maji — Wasifu Usio wa Kawaida Ficha mstari huu

Je, unaweza kupendekeza maneno bora zaidi ya ukurasa huu, au kitu kingine chochote? Unataka kusaidia, au kujifunza kutengeneza vikokotoo kama hivi? Tafadhali wasiliana nami.

Maelezo

n mchanganyiko

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).

Kifuniko cha mawe

Tumia Kikokotoo cha Mfereji wa Trapezoidi wa Manning kubuni kifuniko cha mawe. Kikokotoo hiki kinafaa zaidi kwa sehemu za asili.

Errata

Found and fixed 23 August 2026. A segment drawn exactly vertical — two points at the same station, one above the other, which is how a rectangular channel, a box culvert or a retaining wall is drawn — added no wetted perimeter. Results from before that date are too high for any section with a vertical wall: a channel 10 wide and 5 deep was given a wetted perimeter of 10 instead of 20, and flow about 1.6 times the correct value. A sloping bank, however steep, was never affected, and neither was a wall standing above the water. If you used this page on a section with a vertical wall, please run it again.

Ukaguzi wa kasi

Kasi ya juu inaonyesha kulikuwa na anguko kubwa la mwinuko lililosababisha nishati mahususi ya juu namna hiyo. Nishati hiyo inaweza kupotea haraka kwenye mapanuko, mapinda, au vizuizi. Thibitisha kwamba hii inafaa kwa eneo husika.