The majority of previous work on sills has been undertaken on unsubmerged or partially submerged sills.
Dudill Ashley, Vasquez Jose, Mclean Dave 2018, 'Scouring due to submerged sills', E3S Web of Conferenceshttps://doi.org/10.1051/e3sconf/20184003021. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)