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Simple Methods for Direct Computation of Bed Roughness due to Sediment Transport

Zhang, Jie LU and Larson, Magnus LU (2021) In Journal of Hydraulic Engineering 147(8).
Abstract
The aim of this technical note is to present methods that allow for direct computation of the bed roughness due to sediment transport based on a formula developed in the literature for cases involving current or waves separately. The methods result in approximate nondimensional expressions for the exact solutions in terms of polynomials determined by least-square fits, where the accuracy of the polynomials is high. Using the present methods may significantly reduce calculation times of roughness due to sediment transport in numerical models of morphological change.

Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bed roughness, Shear stress, Sediment transport, Direct computation
in
Journal of Hydraulic Engineering
volume
147
issue
8
pages
5 pages
publisher
American Society of Civil Engineers (ASCE)
external identifiers
  • scopus:85106995344
ISSN
1943-7900
DOI
10.1061/(ASCE)HY.1943-7900.0001907
language
English
LU publication?
yes
id
4e1c6765-4820-4aaf-b2de-5f58bfb0dca4
date added to LUP
2021-05-22 11:08:24
date last changed
2022-04-27 02:03:27
@article{4e1c6765-4820-4aaf-b2de-5f58bfb0dca4,
  abstract     = {{The aim of this technical note is to present methods that allow for direct computation of the bed roughness due to sediment transport based on a formula developed in the literature for cases involving current or waves separately. The methods result in approximate nondimensional expressions for the exact solutions in terms of polynomials determined by least-square fits, where the accuracy of the polynomials is high. Using the present methods may significantly reduce calculation times of roughness due to sediment transport in numerical models of morphological change.<br/><br/>}},
  author       = {{Zhang, Jie and Larson, Magnus}},
  issn         = {{1943-7900}},
  keywords     = {{Bed roughness; Shear stress; Sediment transport; Direct computation}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{8}},
  publisher    = {{American Society of Civil Engineers (ASCE)}},
  series       = {{Journal of Hydraulic Engineering}},
  title        = {{Simple Methods for Direct Computation of Bed Roughness due to Sediment Transport}},
  url          = {{http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0001907}},
  doi          = {{10.1061/(ASCE)HY.1943-7900.0001907}},
  volume       = {{147}},
  year         = {{2021}},
}