Closure to 'Hydraulics of Tangential Vortex Intake for Urban Drainage' by D. Yu and J. H.W. Lee

摘要

The writers would like to thank the discusser for his interest in our work on tangential vortex intakes. The comments and suggestions are well appreciated. Essentially, the discussion revolves around the use of a one-dimensional (1D) approach to analyze the rnfree surface profile in the tapering and sloping inlet; based on the comparison of predicted and observed depths for model no. 1 and model no. 3 (Figs. 1 and 2 of discussion), it is claimed that the gradually varied flow (GVF) analysis is a success. We would like to clarify the nature of the complex flow in the tapering inlet, and elaborate on the role of 1D analysis in the context of the hydraulic design of tangential vortex intakes.