Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern

The effect of width opening downstream of chute structure on the depth and the dimensions of downstream scour hole was investigated using a physical model in the presence of two different block geometries, including a USBR block and a lattice block installed on chute. For this purpose, five chute st...

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Auteurs principaux:	Morteza Karimi Chahartaghi, Sohrab Nazari, Mohsen Solimani Babarsad
Format:	article
Langue:	EN
Publié:	Elsevier 2021
Sujets:	Chute structure Physical model Energy dissipation Flow energy Engineering (General). Civil engineering (General) TA1-2040
Accès en ligne:	https://doaj.org/article/f67a74e32e0a42f9ad85da3c4da39e2f
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spelling	oai:doaj.org-article:f67a74e32e0a42f9ad85da3c4da39e2f2021-11-22T04:22:24ZInvestigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern2090-447910.1016/j.asej.2021.03.025https://doaj.org/article/f67a74e32e0a42f9ad85da3c4da39e2f2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2090447921002008https://doaj.org/toc/2090-4479The effect of width opening downstream of chute structure on the depth and the dimensions of downstream scour hole was investigated using a physical model in the presence of two different block geometries, including a USBR block and a lattice block installed on chute. For this purpose, five chute structures with baffled blocks were designed and constructed, including three models with a divergence ratio of 1.45, 1.75, and 2.45, including a USBR block and 2 models without divergence with a divergence ratio of 1, including USBR and lattice blocks. The results increase the chute widening ratio from 1 to 2.45 reduced the mean and maximum depths and the mean and maximum lengths of scour pit, while enhancing the flow energy dissipation along the chute. Besides, using perforated piers increased the length of scour pit, while reducing its depth and the relative flow energy dissipation.Morteza Karimi ChahartaghiSohrab NazariMohsen Solimani BabarsadElsevierarticleChute structurePhysical modelEnergy dissipationFlow energyEngineering (General). Civil engineering (General)TA1-2040ENAin Shams Engineering Journal, Vol 12, Iss 4, Pp 3543-3552 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chute structure Physical model Energy dissipation Flow energy Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Chute structure Physical model Energy dissipation Flow energy Engineering (General). Civil engineering (General) TA1-2040 Morteza Karimi Chahartaghi Sohrab Nazari Mohsen Solimani Babarsad Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
description	The effect of width opening downstream of chute structure on the depth and the dimensions of downstream scour hole was investigated using a physical model in the presence of two different block geometries, including a USBR block and a lattice block installed on chute. For this purpose, five chute structures with baffled blocks were designed and constructed, including three models with a divergence ratio of 1.45, 1.75, and 2.45, including a USBR block and 2 models without divergence with a divergence ratio of 1, including USBR and lattice blocks. The results increase the chute widening ratio from 1 to 2.45 reduced the mean and maximum depths and the mean and maximum lengths of scour pit, while enhancing the flow energy dissipation along the chute. Besides, using perforated piers increased the length of scour pit, while reducing its depth and the relative flow energy dissipation.
format	article
author	Morteza Karimi Chahartaghi Sohrab Nazari Mohsen Solimani Babarsad
author_facet	Morteza Karimi Chahartaghi Sohrab Nazari Mohsen Solimani Babarsad
author_sort	Morteza Karimi Chahartaghi
title	Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
title_short	Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
title_full	Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
title_fullStr	Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
title_full_unstemmed	Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
title_sort	investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f67a74e32e0a42f9ad85da3c4da39e2f
work_keys_str_mv	AT mortezakarimichahartaghi investigationoftheimpactofbaffledchuteanddivergencesidewallonthedownstreamscourpattern AT sohrabnazari investigationoftheimpactofbaffledchuteanddivergencesidewallonthedownstreamscourpattern AT mohsensolimanibabarsad investigationoftheimpactofbaffledchuteanddivergencesidewallonthedownstreamscourpattern
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Investigation of the impact of baffled-chute and divergence sidewall on the downstream scour pattern

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