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Power formula for open-channel flow resistance

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Abstract

This paper evaluates various power formulas for flow resistance in open channels. Unlike the logarithmic resistance equation that can be theoretically derived either from Prandtl's mixing-length hypothesis or von Karman's similarity hypothesis, the power formula has long had an appearance of empiricism. Nevertheless, the simplicity in the form of the power formula has made it popular among the many possible forms of flow resistance formulas. This paper reexamines the concept and rationale of the power formulation, thereby addressing some critical issues in the modeling of flow resistance.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Power formula for open-channel flow resistance
ISBN:
0872626709; 0872626709
Year Published:
1988
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
25
Last page:
35
Number of Pages:
11
Conference Title:
Hydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering
Conference Location:
Colorado Springs, CO, USA
Conference Date:
8 August 1988 through 12 August 1988