Identification of multiple reach channel parameters

Identification of multiple reach channel parameters The previously developed influence coefficient algorithm for the solution of the parameter identification problem is extended to multiple reach channel flows, and the stage hydrograph and velocity data and observation station location requirements for an effective determination of the parameters are discussed. The specific application chosen here involves the identification of the individual reach friction parameters, which are not physically measurable and which have to be determined from the mathematical model by the use of concurrent input and output measurements. The influence coefficient algorithm is incorporated with numerical solutions of the unsteady equations of flow through explicit finite difference formulations of these equations. The explicit formulations simplify the computer program but necessitate special precautions to avoid computational instabilities. The stability criteria, which must be observed, are indicated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

Identification of multiple reach channel parameters

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Publisher
Wiley
Copyright
Copyright © 1973 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
DOI
10.1029/WR009i002p00326
Publisher site
See Article on Publisher Site

Abstract

The previously developed influence coefficient algorithm for the solution of the parameter identification problem is extended to multiple reach channel flows, and the stage hydrograph and velocity data and observation station location requirements for an effective determination of the parameters are discussed. The specific application chosen here involves the identification of the individual reach friction parameters, which are not physically measurable and which have to be determined from the mathematical model by the use of concurrent input and output measurements. The influence coefficient algorithm is incorporated with numerical solutions of the unsteady equations of flow through explicit finite difference formulations of these equations. The explicit formulations simplify the computer program but necessitate special precautions to avoid computational instabilities. The stability criteria, which must be observed, are indicated.

Journal

Water Resources ResearchWiley

Published: Apr 1, 1973

References

  • Identification of parameters in unsteady open channel flows
    Becker, Becker; Yeh, Yeh

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