This project concerns the computations required to determine the drawdown for the retention/detention of ponds. Drawdown refers to the volume of water in a pond that decreases as the water flows out. The falling head equation has many applications and can be used to calculate the drawdown of a pond through various shaped openings. In particular, we analyze four outflow structures: a rectangular-notch weir, a v-notch weir, a round orifice, and an underdrain. For each instance, we modify the falling head equation to reflect the shape of the respective orifice.
This article was previously called Article 27.
"Stormwater Management System Drawdown,"
Undergraduate Journal of Mathematical Modeling: One + Two:
1, Article 15.
DOI: http://dx.doi.org/10.5038/2326-36188.8.131.52 Available at: http://scholarcommons.usf.edu/ujmm/vol3/iss1/27
Arcadii Grinshpan, Mathematics and Statistics
Scott Hickerson, Southwest Florida Water Management District: Civil Engineer