title: Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models.
abstract: The performance of two popular hydraulic models (HEC-RAS and WSPG) for modeling hydraulic jump in an open channel is investigated. The numerical solutions are compared with a new experimental data set obtained for varying channel bottom slopes and flow rates. Both the models satisfactorily predict the flow depths and location of the jump. The end results indicate that the numerical models output is sensitive to the value of chosen roughness coefficient. For this application, WSPG model is easier to implement with few input variables.
authors.affiliation: Civil and Environmental Engineering Department, California State University, Fullerton, CA 92831 USA.
authors.forename: Prasada
authors.initials: P
authors.lastname: Rao
authors.affiliation: Department of Mathematical Sciences, United States Military Academy, West Point, NY 10996 USA.
authors.forename: Theodore V
authors.initials: TV
authors.lastname: Hromadka
keywords: Froude number; Hydraulic jump; Open channel; Roughness