Analysis and Formulation of Hydraulic Jumps in Sloping Rectangular Closed Conduits

Hydraulic jumps formed in closed rectangular sloping conduits aree investigated experimentally. Both positive and negative slopes are considered. The results are analyzed in terms of the inlet Froude number, the bottom slope and the inflow depth ratio. The experiments are conducted in a laboratory flume. Nineteen models are tested. Ten model for positive slope and another ten models nine negative slope. The analysis of results indicated that both the inlet Froude number and the bottom slope have major effects while the inflow depth ratio has a minor effect on the depth ratio of the jump at the outlet. Prediction model is formulated using multiple linear regressions. The model predictions are compared with the measurements as well as with the results of the previously developed prediction models using the same technique.