Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model

Unequal flow distribution between the chambers of a three-chamber settling basin causes its malfunction and endangers the turbines of a small hydropower plant. To equalize the flows, sluice gates are used. To find their positions, the following methodologies are considered: (1) measurements combined...

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Autores principales:	Miloš V. Nikolić, Rade M. Karamarković
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	ancillary model cfd modeling settling basin side water intake sluice gate small hydropower plant Information technology T58.5-58.64 Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/267833cc96ed45a3a79fc085935dbd8b
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spelling	oai:doaj.org-article:267833cc96ed45a3a79fc085935dbd8b2021-11-05T17:48:46ZFlow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model1464-71411465-173410.2166/hydro.2021.006https://doaj.org/article/267833cc96ed45a3a79fc085935dbd8b2021-07-01T00:00:00Zhttp://jh.iwaponline.com/content/23/4/689https://doaj.org/toc/1464-7141https://doaj.org/toc/1465-1734Unequal flow distribution between the chambers of a three-chamber settling basin causes its malfunction and endangers the turbines of a small hydropower plant. To equalize the flows, sluice gates are used. To find their positions, the following methodologies are considered: (1) measurements combined with trial-and-error method (TAE), (2) measurements with regression analysis (RA), (3) CFD model combined with TAE, (4) CFD model with RA, (5) CFD model supported by a one-dimensional flow model, and (6) CFD model with an analytical model. The additional models and RA are intended to speed up the solution finding. From the previous list, only the sixth methodology is applicable. The first four are not because of the weir design, and the fifth because of the three-dimensional flow character. Initially, the CFD model of the side-weir intake was developed and validated. Afterward, the analytical model, which consists of a system of three pressure drop equations for three parallel and partly imaginary streams, is formed. The local flow resistances in the analytical model are determined by the CFD model combined with RA. To equalize the flows, three solutions with (i) fix, (ii) fix in a range of flows, and (iii) variable positions of the sluice gates are analyzed. HIGHLIGHTS Unequal flow distribution among the chambers of a settling basin causes its malfunctioning.; For the equalization of flows, sluice gates are used.; A 3D CFD model of a side-weir intake is developed and validated by measurements.; To speed up solution finding with the CFD model, an ancillary analytical model is developed.; From three types of flow control (two with fix and one with variable gate positions), the optimal is chosen.;Miloš V. NikolićRade M. KaramarkovićIWA Publishingarticleancillary modelcfd modelingsettling basinside water intakesluice gatesmall hydropower plantInformation technologyT58.5-58.64Environmental technology. Sanitary engineeringTD1-1066ENJournal of Hydroinformatics, Vol 23, Iss 4, Pp 689-708 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ancillary model cfd modeling settling basin side water intake sluice gate small hydropower plant Information technology T58.5-58.64 Environmental technology. Sanitary engineering TD1-1066
spellingShingle	ancillary model cfd modeling settling basin side water intake sluice gate small hydropower plant Information technology T58.5-58.64 Environmental technology. Sanitary engineering TD1-1066 Miloš V. Nikolić Rade M. Karamarković Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
description	Unequal flow distribution between the chambers of a three-chamber settling basin causes its malfunction and endangers the turbines of a small hydropower plant. To equalize the flows, sluice gates are used. To find their positions, the following methodologies are considered: (1) measurements combined with trial-and-error method (TAE), (2) measurements with regression analysis (RA), (3) CFD model combined with TAE, (4) CFD model with RA, (5) CFD model supported by a one-dimensional flow model, and (6) CFD model with an analytical model. The additional models and RA are intended to speed up the solution finding. From the previous list, only the sixth methodology is applicable. The first four are not because of the weir design, and the fifth because of the three-dimensional flow character. Initially, the CFD model of the side-weir intake was developed and validated. Afterward, the analytical model, which consists of a system of three pressure drop equations for three parallel and partly imaginary streams, is formed. The local flow resistances in the analytical model are determined by the CFD model combined with RA. To equalize the flows, three solutions with (i) fix, (ii) fix in a range of flows, and (iii) variable positions of the sluice gates are analyzed. HIGHLIGHTS Unequal flow distribution among the chambers of a settling basin causes its malfunctioning.; For the equalization of flows, sluice gates are used.; A 3D CFD model of a side-weir intake is developed and validated by measurements.; To speed up solution finding with the CFD model, an ancillary analytical model is developed.; From three types of flow control (two with fix and one with variable gate positions), the optimal is chosen.;
format	article
author	Miloš V. Nikolić Rade M. Karamarković
author_facet	Miloš V. Nikolić Rade M. Karamarković
author_sort	Miloš V. Nikolić
title	Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
title_short	Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
title_full	Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
title_fullStr	Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
title_full_unstemmed	Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model
title_sort	flow control in a multichamber settling basin by sluice gates driven by a cfd and an ancillary analytical model
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/267833cc96ed45a3a79fc085935dbd8b
work_keys_str_mv	AT milosvnikolic flowcontrolinamultichambersettlingbasinbysluicegatesdrivenbyacfdandanancillaryanalyticalmodel AT rademkaramarkovic flowcontrolinamultichambersettlingbasinbysluicegatesdrivenbyacfdandanancillaryanalyticalmodel
_version_	1718444089662242816

Flow control in a multichamber settling basin by sluice gates driven by a CFD and an ancillary analytical model

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