Statistics, Department of

 

The R Journal

Date of this Version

12-2015

Document Type

Article

Citation

The R Journal (December 2015) 7(2); Editor: Bettina Grün

Comments

Copyright 2015, The R Foundation. Open access material. License: CC BY 3.0 Unported

Abstract

The rivr package provides a computational toolset for simulating steady and unsteady one dimensional flows in open channels. It is designed primarily for use by instructors of undergraduate and graduate-level open-channel hydrodynamics courses in such diverse fields as river engineering, physical geography and geophysics. The governing equations used to describe open-channel flows are briefly presented, followed by example applications. These include the computation of gradually varied flows and two examples of unsteady flows in channels—namely, the tracking of the evolution of a flood wave in a channel and the prediction of extreme variation in the water-surface profile that results when a sluice gate is abruptly closed. Model results for the unsteady flow examples are validated against standard benchmarks. The article concludes with a discussion of potential modifications and extensions to the package.

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