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Accuracy of Equivalent Roughness Height Formulas in Practical Applications

In English

Författare

Summary, in English

This paper presents a discussion on the application and accuracy of roughness height formulas from a practical point of view. Such formulas have been proposed to describe the equivalent roughness height for plane bed conditions on the basis of the Shields parameter. The application of these relationships requires an iterative solution technique. However, as this paper demonstrates, the roughness estimates are not always reliable because the application of the formulas yields large discrepancies in the results. DOI: 10.1061/(ASCE)HY.1943-7900.0000670. (C) 2013 American Society of Civil Engineers.

Publiceringsår

2013

Språk

Engelska

Sidor

331-335

Publikation/Tidskrift/Serie

Journal of Hydraulic Engineering

Volym

139

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

American Society of Civil Engineers (ASCE)

Ämne

  • Water Engineering

Nyckelord

  • Roughness height
  • Friction factor
  • Plane bed
  • Sheet flow
  • Experimental
  • data
  • Predictive formula
  • Iterative formula

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1943-7900