Computational technique and performance of transient inundation model for rivers 142 dimensional (TRIM2RD): a depth-averaged two-dimensional flow model

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Title Computational technique and performance of transient inundation model for rivers 142 dimensional (TRIM2RD): a depth-averaged two-dimensional flow model
Creator Fulford, Janice M.
Subject Rivers; Floods; Methodology
Description A numerical computer model, Transient Inundation Model for Rivers - 2 Dimensional (TrimR2D), that solves the two-dimensional depth-averaged flow equations is documented and discussed. The model uses a semi-implicit, semi-Lagrangian finite difference method. It is a variant of the Trim model and has been used successfully in estuarine environments such as San Francisco Bay. The abilities of the model are documented for three scenarios: uniform depth flows, laboratory dam-break flows, and large-scale riverine flows. The model can start computations from a "dry" bed and converge to accurate solutions. Inflows are expressed as source terms, which limits the use of the model to sufficiently long reaches where the flow reaches equilibrium with the channel. The data sets used by the investigation demonstrate that the model accurately propagates flood waves through long river reaches and simulates dam breaks with abrupt water-surface changes.
Publisher U.S. Geological Survey
Date 2003
Type Text
Format application/pdf
Digitization Specifications pdf file copied from USGS website (http://pubs.usgs.gov/of/2003/ofr03371/). Uploaded into CONTENTdm version 3.7.
Identifier http://pubs.usgs.gov/of/2003/ofr03371/
Source Fulford, Janice M., 2003, Computational technique and performance of transient inundation model for rivers 142 dimensional (TRIM2RD): a depth-averaged two-dimensional flow model, Washington: U.S. Geological Survey Open 13File Report 03-371, 60 p.
Language eng
Rights Management Public Domain, Courtesy of the USGS
Holding Institution University of Utah
Metadata Cataloger Daureen Nesdill; Kristin Willmore
ARK ark:/87278/s6g44p75
Setname wwdl_er
Date Created 2004-10-30
Date Modified 2005-10-19
ID 1145686
Reference URL https://collections.lib.utah.edu/ark:/87278/s6g44p75
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