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Accuracy of Equivalent Roughness Height Formulas in Practical Applications

Camenen, Benoit and Larson, Magnus LU (2013) In Journal of Hydraulic Engineering 139(3). p.331-335
Abstract
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.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Roughness height, Friction factor, Plane bed, Sheet flow, Experimental, data, Predictive formula, Iterative formula
in
Journal of Hydraulic Engineering
volume
139
issue
3
pages
331 - 335
publisher
American Society of Civil Engineers (ASCE)
external identifiers
  • wos:000316558200007
  • scopus:84879587583
ISSN
1943-7900
DOI
10.1061/(ASCE)HY.1943-7900.0000670
language
English
LU publication?
yes
id
275cc643-80be-4922-85cb-1928bc79149b (old id 3761008)
date added to LUP
2016-04-01 13:20:15
date last changed
2020-02-12 04:47:14
@article{275cc643-80be-4922-85cb-1928bc79149b,
  abstract     = {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.},
  author       = {Camenen, Benoit and Larson, Magnus},
  issn         = {1943-7900},
  language     = {eng},
  number       = {3},
  pages        = {331--335},
  publisher    = {American Society of Civil Engineers (ASCE)},
  series       = {Journal of Hydraulic Engineering},
  title        = {Accuracy of Equivalent Roughness Height Formulas in Practical Applications},
  url          = {http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000670},
  doi          = {10.1061/(ASCE)HY.1943-7900.0000670},
  volume       = {139},
  year         = {2013},
}