Modeling a plunging underflow

Christopher Dallimore, Jorg Imberger, B.R. Hodges

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


A coupled three-dimensional hydrodynamics and two-dimensional underflow model is adapted to provide simulation of plunging inflows in reservoirs. The new approach accounts for the effect of the barotropic term prior to the plunge point of the inflow. Simulations of plunging flows in constant width and constant slope channels are conducted and the resulting plunge depths are in agreement with prior empirical models. Simulation of a previously measured underflow in Wellington Reservoir (Australia) demonstrates the model application to a plunging inflow in a natural water body and good agreement between field and model results.
Original languageEnglish
Pages (from-to)1068-1076
JournalJournal of Hydraulic Engineering
Issue number11
Publication statusPublished - 2004


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