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(Article of periodic en Anglais - 1997)

Document title

Critical flow in rockbed streams with estimated values for Manning's n

Authors(s) and Affiliation(s)

TINKLER K.J. (1) ;
(1) Dep. Geography, Brock Univ., St. Catharines, CANADA

Abstract

In this paper, n, Manning's roughness, is understood to include all forms of energy loss required to bring the Manning equation to an accurate estimate of mean velocity in the appropriate section. In subcritical flow it is probable that boundary roughness is the primary component in energy loss, but in high-gradient and rough boundary systems turbulent and vertical losses assume a much increased importance in contribution to the n term. Application of the equation of critical flow to data from well-known catastrophic flows provides surprisingly good estimates of Manning's n for these flows

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1997, vol. 20, no1-2 [pp. 147-164]

Bibliographic references : 32 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1997.
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