WebJul 24, 2024 · The Rational Formula reads: Where Qp= Peak runoff rate [m³/sec], C = Runoff coefficient I = Rainfall intensity [mm/hr], A = Drainage area [km²] The … WebFlood Discharge Formula Discharge = Flood coefficient* (Catchment Area)^ (Flood index) Q = C* (Ac)^ (n) What is discharge ? Discharge is the volume of water that …
Floods: Recurrence intervals and 100-year floods U.S ... - USGS
WebMaximum flood discharge is required for spillway design. As by any method exact amount and intensity of flood is difficult to predict, expected flood and its consequent damages can only be judged and approximated. ... Dicken’s formula – Q = CA 3/4 ( C=11.5 North India, C=14 to 19.5 Central India, C= 22 to 26 Western Ghats) Ingli’s formula WebFeb 2, 2024 · Once you know the velocity of the gravity flow, you can also find the discharge, Q Q, by multiplying the cross-sectional area of the pipe by the flow speed: Q = A \times v Q = A × v. Make sure to use our flow … sonic exy download
Important Flood Empirical Formulas Rational Formula, Catchment …
WebPeak Discharge (Estimation of flood) - (Measured in Cubic Meter per Second) - Peak Discharge (Estimation of flood) is the maximum volume flow rate passing a particular location during an event. Dickens Constant - Dickens Constant C is a constant whose value varies widely between 2.8 to 5.6 for catchments in plains and 14 to 28 for catchments in … WebJan 22, 2024 · Rational formula is: Q = 0.27 CIA. where C = constant depending on the nature of the catchment (0.1-0.9) and 1 for paused area. I = Intensity of rainfall (mm/hr) … WebSep 26, 2024 · A different empirical method for determining flood discharge are as follows: Ryves Method Q P = C R A 2 3 This formula is used only in Southern India. Jarvi’s Method This formula is applicable for Eastern India. Q P = C A Inglis Method This formula is used only in Maharashtra. Here three different cases are taken into consideration. small hookless shower curtain