Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs

For maintaining healthy streams and rivers, a high concentration of oxygen is desired and hydraulic structures act as natural aerators where oxygen transfer occurs by creating turbulence in the water. Aeration studies of conventional weirs are carried out widely in the past but at the same time, lab...

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Autores principales:	Aradhana Singh, Balraj Singh, Parveen Sihag
Formato:	article
Lenguaje:	EN
Publicado:	Pouyan Press 2021
Materias:	labyrinth weir aeration efficiency svm rf m5p Technology T
Acceso en línea:	https://doaj.org/article/3e482857e4474284a12c4e366db85207
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spelling	oai:doaj.org-article:3e482857e4474284a12c4e366db852072021-11-11T11:41:52ZExperimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs2588-287210.22115/scce.2021.284637.1311https://doaj.org/article/3e482857e4474284a12c4e366db852072021-07-01T00:00:00Zhttp://www.jsoftcivil.com/article_134833_c59fd08786dfd496d06600f278ed047f.pdfhttps://doaj.org/toc/2588-2872For maintaining healthy streams and rivers, a high concentration of oxygen is desired and hydraulic structures act as natural aerators where oxygen transfer occurs by creating turbulence in the water. Aeration studies of conventional weirs are carried out widely in the past but at the same time, labyrinth weirs, where the weir crest is cranked thereby enhancing their crest length, have got a little notice. The test records were obtained through 180 laboratory observations on nine physical models to estimate aeration efficiency (E20) at labyrinth weirs (LWs). The E20 increases with the number of key as well as drop height and it is found to be highest for rectangular shape in comparison of the triangular and trapezoidal LWs, however, E20 decreases with the increase of discharge. Further, this work unravels the novel idea and potential of the M5P model tree (M5P), support vector regression machine (SVM), and Random Forest (RF) methods for estimation of aeration efficiency (E20) at LWs. The results depicted that the RF model performs best in determining the E20 at LWs. The results of sensitivity analysis further illustrated that drop height is the parameter that affects the prediction of E20 at the LWs most.Aradhana SinghBalraj SinghParveen SihagPouyan Pressarticlelabyrinth weiraeration efficiencysvmrfm5pTechnologyTENJournal of Soft Computing in Civil Engineering, Vol 5, Iss 3, Pp 15-31 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	labyrinth weir aeration efficiency svm rf m5p Technology T
spellingShingle	labyrinth weir aeration efficiency svm rf m5p Technology T Aradhana Singh Balraj Singh Parveen Sihag Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
description	For maintaining healthy streams and rivers, a high concentration of oxygen is desired and hydraulic structures act as natural aerators where oxygen transfer occurs by creating turbulence in the water. Aeration studies of conventional weirs are carried out widely in the past but at the same time, labyrinth weirs, where the weir crest is cranked thereby enhancing their crest length, have got a little notice. The test records were obtained through 180 laboratory observations on nine physical models to estimate aeration efficiency (E20) at labyrinth weirs (LWs). The E20 increases with the number of key as well as drop height and it is found to be highest for rectangular shape in comparison of the triangular and trapezoidal LWs, however, E20 decreases with the increase of discharge. Further, this work unravels the novel idea and potential of the M5P model tree (M5P), support vector regression machine (SVM), and Random Forest (RF) methods for estimation of aeration efficiency (E20) at LWs. The results depicted that the RF model performs best in determining the E20 at LWs. The results of sensitivity analysis further illustrated that drop height is the parameter that affects the prediction of E20 at the LWs most.
format	article
author	Aradhana Singh Balraj Singh Parveen Sihag
author_facet	Aradhana Singh Balraj Singh Parveen Sihag
author_sort	Aradhana Singh
title	Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
title_short	Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
title_full	Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
title_fullStr	Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
title_full_unstemmed	Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs
title_sort	experimental investigation and modeling of aeration efficiency at labyrinth weirs
publisher	Pouyan Press
publishDate	2021
url	https://doaj.org/article/3e482857e4474284a12c4e366db85207
work_keys_str_mv	AT aradhanasingh experimentalinvestigationandmodelingofaerationefficiencyatlabyrinthweirs AT balrajsingh experimentalinvestigationandmodelingofaerationefficiencyatlabyrinthweirs AT parveensihag experimentalinvestigationandmodelingofaerationefficiencyatlabyrinthweirs
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Experimental Investigation and Modeling of Aeration Efficiency at Labyrinth Weirs

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