Roughness Effects on Rectangular Free Overfall: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Roughness Effects on Rectangular Free Overfall

Rajaratnam, Nallamuthu / Muralidhar, Durfakula / Beltaos, Spyridon

For a rectangular free overfall, the end depth ratio (EDR) has been well connected with the main parameters using dimensional analysis. Using experimental results on three different roughnesses, it has been found that the EDR can be predicted from the curve Delleur, et al., for smooth channels, if the relative roughness k_s/ydac (in which k_s is the Nikuradse equivalent sand roughness and y_c is the critical depth) is less than about 0.1. If k_s/y_c is greater than 0.1, then the EDR is reduced by the roughness and this effect has been correlated using the experimental results. A method has been proposed to predict the discharge from the measured end depth for a rough rectangular free overfall.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Roughness Effects on Rectangular Free Overfall

Rajaratnam, Nallamuthu / Muralidhar, Durfakula / Beltaos, Spyridon

For a rectangular free overfall, the end depth ratio (EDR) has been well connected with the main parameters using dimensional analysis. Using experimental results on three different roughnesses, it has been found that the EDR can be predicted from the curve Delleur, et al., for smooth channels, if the relative roughness k_s/ydac (in which k_s is the Nikuradse equivalent sand roughness and y_c is the critical depth) is less than about 0.1. If k_s/y_c is greater than 0.1, then the EDR is reduced by the roughness and this effect has been correlated using the experimental results. A method has been proposed to predict the discharge from the measured end depth for a rough rectangular free overfall.

Roughness Effects on Rectangular Free Overfall

Rajaratnam, Nallamuthu / Muralidhar, Durfakula / Beltaos, Spyridon

For a rectangular free overfall, the end depth ratio (EDR) has been well connected with the main parameters using dimensional analysis. Using experimental results on three different roughnesses, it has been found that the EDR can be predicted from the curve Delleur, et al., for smooth channels, if the relative roughness k_s/ydac (in which k_s is the Nikuradse equivalent sand roughness and y_c is the critical depth) is less than about 0.1. If k_s/y_c is greater than 0.1, then the EDR is reduced by the roughness and this effect has been correlated using the experimental results. A method has been proposed to predict the discharge from the measured end depth for a rough rectangular free overfall.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Roughness Effects on Rectangular Free Overfall

Contributors:

Rajaratnam, Nallamuthu (author) / Muralidhar, Durfakula (author) / Beltaos, Spyridon (author)

Published in:

Journal of the Hydraulics Division ; 102 ; 599-614

Publication date:

2021-01-01

Size:

161976-01-01 pages

ISSN:

0044-796X , 2690-2524

DOI:

https://doi.org/10.1061/JYCEAJ.0004539

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Similar titles

Erratum for “Roughness Effects on Rectangular Free Overfall”

Rajaratnam, Nallamuthu / Beltaos, Spyridon / Muralidhar, Durfakula | ASCE | 2021

The Rectangular Free Overfall

Rajaratnam, Nallamuthu / Muralidhar, Durbakula | ASCE | 2021

Modeling Study of Free Overfall in a Rectangular Channel with Strip Roughness

Guo, Y. / Zhang, L. / Shen, Y. et al. | British Library Online Contents | 2008

Flow Measurement with Rectangular Free Overfall

Ferro, V. | British Library Online Contents | 1992

Modeling Study of Free Overfall in a Rectangular Channel with Strip Roughness

Guo, Yakun | Online Contents | 2008