Channel roughness in 1D steady uniform flow: Manning or Chézy?

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Abstract

In river flow applications, consensus on the most appropriate roughness descriptor has yet to be found. A disturbing observation is that the coefficients and formulae of Chézy, Darcy Weisbach, Manning, Strickler and White Colebrook are used rather arbitrarily, and that a widely accepted scientific justification is lacking. The presented paper compares the most commonly used roughness parameters, and reflects on some arguments that are often used in favour of, or against, any of these. Some recent advances on the theoretical basis of different methods are put forward, and implications for commonly used hydraulic modelling packages are discussed.
Original languageUndefined
Title of host publicationProceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005
EditorsA. Makaske, H.P. Wolfert, A.G. van Os
Pages98-100
Publication statusPublished - 4 Nov 2005

Publication series

Name
Number1568-234X

Keywords

  • IR-59985
  • METIS-225128

Cite this

Huthoff, F., & Augustijn, D. C. M. (2005). Channel roughness in 1D steady uniform flow: Manning or Chézy? In A. Makaske, H. P. Wolfert, & A. G. van Os (Eds.), Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005 (pp. 98-100)
Huthoff, Freek ; Augustijn, Dionysius C.M. / Channel roughness in 1D steady uniform flow: Manning or Chézy?. Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005. editor / A. Makaske ; H.P. Wolfert ; A.G. van Os. 2005. pp. 98-100
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abstract = "In river flow applications, consensus on the most appropriate roughness descriptor has yet to be found. A disturbing observation is that the coefficients and formulae of Ch{\'e}zy, Darcy Weisbach, Manning, Strickler and White Colebrook are used rather arbitrarily, and that a widely accepted scientific justification is lacking. The presented paper compares the most commonly used roughness parameters, and reflects on some arguments that are often used in favour of, or against, any of these. Some recent advances on the theoretical basis of different methods are put forward, and implications for commonly used hydraulic modelling packages are discussed.",
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Huthoff, F & Augustijn, DCM 2005, Channel roughness in 1D steady uniform flow: Manning or Chézy? in A Makaske, HP Wolfert & AG van Os (eds), Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005. pp. 98-100.

Channel roughness in 1D steady uniform flow: Manning or Chézy? / Huthoff, Freek; Augustijn, Dionysius C.M.

Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005. ed. / A. Makaske; H.P. Wolfert; A.G. van Os. 2005. p. 98-100.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Channel roughness in 1D steady uniform flow: Manning or Chézy?

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AU - Augustijn, Dionysius C.M.

PY - 2005/11/4

Y1 - 2005/11/4

N2 - In river flow applications, consensus on the most appropriate roughness descriptor has yet to be found. A disturbing observation is that the coefficients and formulae of Chézy, Darcy Weisbach, Manning, Strickler and White Colebrook are used rather arbitrarily, and that a widely accepted scientific justification is lacking. The presented paper compares the most commonly used roughness parameters, and reflects on some arguments that are often used in favour of, or against, any of these. Some recent advances on the theoretical basis of different methods are put forward, and implications for commonly used hydraulic modelling packages are discussed.

AB - In river flow applications, consensus on the most appropriate roughness descriptor has yet to be found. A disturbing observation is that the coefficients and formulae of Chézy, Darcy Weisbach, Manning, Strickler and White Colebrook are used rather arbitrarily, and that a widely accepted scientific justification is lacking. The presented paper compares the most commonly used roughness parameters, and reflects on some arguments that are often used in favour of, or against, any of these. Some recent advances on the theoretical basis of different methods are put forward, and implications for commonly used hydraulic modelling packages are discussed.

KW - IR-59985

KW - METIS-225128

M3 - Conference contribution

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BT - Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005

A2 - Makaske, A.

A2 - Wolfert, H.P.

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Huthoff F, Augustijn DCM. Channel roughness in 1D steady uniform flow: Manning or Chézy? In Makaske A, Wolfert HP, van Os AG, editors, Proceedings NCR-days 2004, Research for managing rivers; present and future issues, NCR publication 26-2005. 2005. p. 98-100