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.
Original language | English |
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Pages (from-to) | 331-335 |
Journal | Journal of Hydraulic Engineering |
Volume | 139 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2013 |
Subject classification (UKÄ)
- Water Engineering
Free keywords
- Roughness height
- Friction factor
- Plane bed
- Sheet flow
- Experimental
- data
- Predictive formula
- Iterative formula