TECHNICAL NOTES
Jun 1, 2000
Computational-Reach Length for Prismatic Channels
Publication: Journal of Hydraulic Engineering
Volume 126, Issue 6
Abstract
In this paper, we present a methodology for the selection of reach length in unsteady, one-dimensional models of open channel flow. Using computational experiments, we determined an appropriate reach length for 425 combinations of channel and flow parameters. For each combination of parameters, we refined the finite difference grid until numerical error was reduced to 1.0% of a high resolution solution. We generated a set of dimensionless parameters and used regression analysis to relate channel and flood properties to an appropriate computational reach length.
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References
1.
Contractor, D. N., and Schuurmans, W. (1991). “Informed use and potential pitfalls of canal models.” Irrig. and Drain., Proc., 1991 Nat. Conf., ASCE, New York, 311–322.
2.
Cunge, J. A., Holly Jr., F. M., and Verwey, A. (1980). Practical aspects of computational river hydraulics, Iowa Institute of Hydraulic Research, Iowa City, Iowa.
3.
Samuels, P. G. (1990). “Cross-section location in 1-D models.” Proc., Int. Conf. on River Flood Hydr., Wiley, Chichester, 339–350.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 126 • Issue 6 • June 2000
Pages: 467 - 469
History
Received: Sep 9, 1998
Published online: Jun 1, 2000
Published in print: Jun 2000
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Authors
Affiliations
Jennifer K. Holman-Dodds
C. Bryan Young
Brian R. Nelson
Student Member, ASCE
Grad. Student, Iowa Inst. of Hydr. Res. and Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City, IA 52252. E-mail: [email protected]
Asst. Prof., Dept. of Civ. and Envir. Engrg., Univ. of Kansas, Lawrence, KS 66044.
Grad. Student, Iowa Inst. of Hydr. Res. and Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City, IA.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.