Engineering >> Civil & Environmental EngineeringStormwater Management System Drawdown 'Falling Head Equation'by Ahmad Chehab
Submitted : Fall 2010 In this project I demonstrated the calculations required to determine the drawdown for retention/detention ponds. Drawdown is a phrase which refers to the volume of water in a pond decreasing as the water flows out. Although I applied different variations of this formula, the core equation I dealt with in this project is called the Falling Head Equation. This equation has many applications and is used to calculate the drawdown of a pond through various shaped openings by slightly tweaking the formula for each orifice. I have provided calculations for four outflow structures: a rectangularnotch weir, a vnotch weir, a round orifice, and an underdrain. Related Links:
