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Multifractal characterization of water-worked gravel surfaces
This study investigates the roughness of water-worked gravel surfaces using stable gravel-beds armoured in flume and field experiments. As an alternative to traditional approaches, multifractal analysis is employed to investigate the roughness of these surfaces. Power spectra analysis is used to study scale-invariant regimes, defined by the ranges of scales where the spectra follow power laws. Then, multifractal spectra are calculated and analysed. The strength of multifractality reflecting heterogeneity of elevations is related to the development of a stable armour layer. The development of armouring processes of the gravel surfaces formed in the flume experiments is investigated using the effective grain size approach based on Gessler's model. For surfaces in the field, the two-dimensional second-order structure function is used to study the static armour surfaces due to the absence of historical hydrological data. The results of these analyses confirm the results of multifractal analyses.
Multifractal characterization of water-worked gravel surfaces
This study investigates the roughness of water-worked gravel surfaces using stable gravel-beds armoured in flume and field experiments. As an alternative to traditional approaches, multifractal analysis is employed to investigate the roughness of these surfaces. Power spectra analysis is used to study scale-invariant regimes, defined by the ranges of scales where the spectra follow power laws. Then, multifractal spectra are calculated and analysed. The strength of multifractality reflecting heterogeneity of elevations is related to the development of a stable armour layer. The development of armouring processes of the gravel surfaces formed in the flume experiments is investigated using the effective grain size approach based on Gessler's model. For surfaces in the field, the two-dimensional second-order structure function is used to study the static armour surfaces due to the absence of historical hydrological data. The results of these analyses confirm the results of multifractal analyses.
Multifractal characterization of water-worked gravel surfaces
Qin, Jie (author) / Ng, Sai Leung (author)
Journal of Hydraulic Research ; 49 ; 345-351
2011-06-01
7 pages
Article (Journal)
Electronic Resource
English
Multifractal characterization of water-worked gravel surfaces
| British Library Online Contents | 2011
Multifractal characterization of water-worked gravel surfaces
| Online Contents | 2011
Estimation of Effective Roughness for Water-Worked Gravel Surfaces
| Online Contents | 2012
Estimation of Effective Roughness for Water-Worked Gravel Surfaces
| British Library Online Contents | 2012