a) A watershed has experienced a heavy rainfall event. The initial in…
Previous year question for Hydrology and Irrigation Engineering.
Question
a) A watershed has experienced a heavy rainfall event. The initial infiltration rate is 12 mm/hour, and the rainfall intensity is 20 mm/hour. If Horton's equation governs the infiltration process and the decay constant (k) for the watershed is 0.2 per hour, determine the infiltration rate after 3 hours.
10 Marks
b) A soil has the following properties: porosity (n) = 0.40, initial moisture content (θi) = 0.15, hydraulic conductivity (K) = 10 cm/hour, and sorptivity (S) = 5 cm. Calculate the cumulative infiltration after 2 hours of rainfall with an intensity of 4 cm/hour using the Green-Ampt method.
10 Marks
- Year: 2022
- Subject: Hydrology and Irrigation Engineering