User's guide for a general purpose dam-break flood simulation model (K-634)

Water-Resources Investigations Report 80-116


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An existing computer program for simulating dam-break floods for forecast purposes has been modified with an emphasis on general purpose applications. The original model was formulated, developed and documented by the National Weather Service. This model is based on the complete flow equations and uses a nonlinear implicit finite-difference numerical method. The first phase of the simulation routes a flood wave through the reservoir and computes an outflow hydrograph which is the sum of the flow through the dam 's structures and the gradually developing breach. The second phase routes this outflow hydrograph through the stream which may be nonprismatic and have segments with subcritical or supercritical flow. The results are discharge and stage hydrographs at the dam as well as all of the computational nodes in the channel. From these hydrographs, peak discharge and stage profiles are tabulated. (USGS)

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title User's guide for a general purpose dam-break flood simulation model (K-634)
Series title Water-Resources Investigations Report
Series number 80-116
DOI 10.3133/wri80116
Edition -
Year Published 1981
Language ENGLISH
Publisher U.S. Geological Survey, Water Resources Division, Gulf Coast Hydroscience Center, National Space Technology Laboratories,
Description iv, 101 p. :ill., maps ;28 cm.