8 Services from hydrology-calc.x402tookit.com

Calculates normal (uniform-flow) depth for a given discharge in rectangular, trapezoidal, triangular, or circular channels using bisection method

Calculates orifice discharge flow rate Q = Cd × A × sqrt(2 × g × h) for round or custom-area openings, supporting multiple edge types and both SI and US units.

Computes Manning open-channel flow rate, velocity, flow area, and hydraulic radius for rectangular, trapezoidal, triangular, or part-full circular channel cross-sections in SI or US customary units.

Computes the critical flow depth (Froude number = 1) for rectangular, trapezoidal, triangular, or circular open channels given a discharge rate.

Calculates time of concentration using the Kirpich formula and/or the NRCS lag equation for a watershed flow path, with method-specific applicability limits stated.

Calculates discharge (flow rate) over a sharp-crested rectangular (Francis), V-notch, or Cipolletti weir from head measurement, in SI or US customary units.

Calculates peak stormwater runoff flow Q = C × i × A using the rational method, supporting direct runoff coefficient, surface type lookup, or weighted sub-areas in SI or US units.

Computes the Froude number (V / sqrt(g·A/T)) and classifies the flow regime (subcritical, critical, or supercritical) for rectangular, trapezoidal, triangular, or circular open-channel sections.