<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The determination of resistance coefficients, such as Chezy’s or Manning’s coefficients, requires a great deal of sensible thought in order to express these coefficients better and more extensively in free-surface channels and aqueducts. This can be achieved if the expression of the resistance coefficient is well stated and takes into account the maximum number of parameters for governing flows in channels. However, in most practical cases, if these coefficients are not expressed by implicit models, they are generally taken as constant and arbitrary. To this end and in a rational manner, the dimensioning and design of channels requires the expression of the resistance coefficient in an easily and explicit form by adopting numerous flow parameters, namely the roughness of the walls, the aspect ratio, the slope of the channels and essentially the viscosity of the liquid. To achieve this aim, the Chezy’s resistance coefficient <italic>C</italic> is identified using the rough model method (RMM), which gives the discharge under uniform flow conditions appropriate to a round-cornered rectangle channel.</p>
</abstract>

The determination of resistance coefficients, such as Chezy’s or Manning’s coefficients, requires a great deal of sensible thought in order to express these coefficients better and more extensively in free-surface channels and aqueducts. This can be achieved if the expression of the resistance coefficient is well stated and takes into account the maximum number of parameters for governing flows in channels. However, in most practical cases, if these coefficients are not expressed by implicit models, they are generally taken as constant and arbitrary. To this end and in a rational manner, the dimensioning and design of channels requires the expression of the resistance coefficient in an easily and explicit form by adopting numerous flow parameters, namely the roughness of the walls, the aspect ratio, the slope of the channels and essentially the viscosity of the liquid. To achieve this aim, the Chezy’s resistance coefficient C is identified using the rough model method (RMM), which gives the discharge under uniform flow conditions appropriate to a round-cornered rectangle channel.

Chezy’s Resistance Coefficient in a Round-cornered Rectangle Channel

Civil Engineering Department, Laboratory for Management, Maintenance and Rehabilitation of Urban Equipment and Infrastructure (INFRARES)

Research Laboratory in Subterranean and Surface Hydraulics (LARHYSS)

Archives of Hydro-Engineering and Environmental Mechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Chezy\u2019s Resistance Coefficient in a Round-cornered Rectangle Channel"}

The determination of resistance coefficients, such as Chezy’s or Manning’s coefficients, requires a great deal of sensible thought in order to express these...

Chezy’s Resistance Coefficient in a Round-cornered Rectangle Channel

Publié en ligne: 01 août 2024

Pages: 89 - 103

Reçu: 16 mai 2024

DOI: https://doi.org/10.2478/heem-2024-0006

Mots clés
Chezy’s resistance coefficient, RMM, round-cornered rectangle channel, uniform flow

© 2024 Imed Loukam et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Chezy’s Resistance Coefficient in a Round-cornered Rectangle Channel

Publié en ligne: 01 août 2024

Pages: 89 - 103

Reçu: 16 mai 2024

DOI: https://doi.org/10.2478/heem-2024-0006

Mots clésChezy’s resistance coefficient, RMM, round-cornered rectangle channel, uniform flow

© 2024 Imed Loukam et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Chezy’s resistance coefficient, RMM, round-cornered rectangle channel, uniform flow