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Języki publikacji
Abstrakty
River training structures; such as submerged groynes are low profile linear structures that are generally located on the outside bank to form groynes fields and prevent the erosion of stream banks by keeping a flow away from it. In the present research, the maximum scour depth was measured based on laboratory experiments where different shapes of submerged groynes (I-shape, L-shape, T-shape) were used as sort of countermeasures to investigate about most shapes that reduce the scour around them. The result of submerged groynes showed a clear decrease in scour depth ratio due to increasing submerged ratio and increase the scour hole geometry with increasing of flow intensity, and also Froude number. The maximum scour hole in this research was observed at T-shape groyne and then followed by I-shape groyne and L-shape groyne. The maximum scour depth that cased by I-shape was more than L-shape by a percentage about 8.2%, and it was less than T-shape by a percentage about 16.4%.
Słowa kluczowe
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Czasopismo
Rocznik
Tom
Strony
1--9
Opis fizyczny
Bibliogr. 11 poz., rys., tab.
Twórcy
autor
- University of Basrah, College of Engineering, Department of Civil Engineering, Centre of Basrah, Iraq
autor
- University of Basrah, College of Engineering, Department of Civil Engineering, Centre of Basrah, Iraq
Bibliografia
- GHOSH T. 2018. Scour analysis around a flow centered vane dyke of different shape. MSc. Thesis in water resources and hydraulic engineering. West Bengal. India. Jadavpur University. No. M4WRE18008. pp. 72.
- HONG Y.M., CHANG M.L., LIN H.C., KAN Y.C., LIN C.C. 2012. Experimental study on clear water scour around bridge piers. In: Applied Mechanics and Materials. Vol. 121 p. 162–166. DOI 10.4028/www.scientific.net/AMM.121-126.162.
- JHA H., JHA S., KARMACHARYA B. 2000. Flood control measures best practices report. An approach for community-based flood control measures in the Terai rivers. Kathmandu. German Technical Cooperation.
- KIRAGA M., POPEK Z. 2016. Using a modified Lane’s relation in local bed scouring studies in the laboratory channel. Acta Scientiarum Polonorum Formatio Circumiectus. Vol. 5 (4) p. 209–226. DOI 10.15576/ASP.FC/2016.15.4.209.
- KASHYAP S., RENNIE C.D., TOWNSEND R., CONSTANTINESCU G., TOKYAY T.E. 2014. Flow around submerged groynes in a sharp bend using a 3D LES mode. In: River flow 2010. Eds. A. Dittrich, K. Koll, J. Aberle, P. Geisenhainer. ISBN 978-3-939230-00-7 p. 643–650.
- LAGASSE P.F., RICHARDSON E.V. 2001. ASCE compendium of stream stability and bridge scour papers. Journal of Hydraulic Engineering. ASCE. Vol. 127. Iss. 7 p. 531–533.
- MCCOY A.W. 2006. Numerical investigations using LES: Exploring flow physics and mass exchange processes near groyne. PhD Thesis. University of Iowa. Vol. 48. No. 461 pp. 275. DOI 10.17077/etd.vt63cy20.
- MCCOY A., CONSTANTINESCU G., WEBER L. 2007. A numerical investigation of coherent structures and mass exchange processes in channel flow with two laterals submerged groynes. Water Resources Research. Vol. 43. No. 5 p. 1–26. DOI 10.1029/2006WR005267.
- MELVILLE B.W., CHIEW Y.M. 1999. Time scale for local scour at bridge piers. Journal of Hydraulic Engineering. Vol. 125. Iss. 1 p. 59–65. DOI 10.1061/(ASCE)0733-9429(1999)125:1(59).
- MÖWS R., KOLL K. 2019. Roughness effect of submerged groyne fields with varying length, groyne distance, and groyne types. Water. Vol. 11. No. 6. p. 1–11. DOI 10.3390/w11061253.
- ZHANG H., NAKAGAWA H. 2008. Scour around spur dyke. Journal of Advanced and Future Researches. Japan. No. 51b p. 633–652.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e13395f1-62c2-4c9f-a393-bc9a23e6a5b6