Investigation of the effect of the Bandal-like permeability on the maximum scour depth in a 90 degree bend and in submerged condition

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KOOCHAK PARISA; KASHEFIPOUR SEYED MAHMOOD; GHOMESHI MEHDI; FATHI AHMAD

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Journal: JOURNAL OF MARINE SCIENCES AND TECHNOLOGY Year:2018 | Volume:17 | Issue:1 Page(s): 97-109

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Title

Investigation of the effect of the Bandal-like permeability on the maximum scour depth in a 90 degree bend and in submerged condition

Author(s)

KOOCHAK PARISA | KASHEFIPOUR SEYED MAHMOOD | GHOMESHI MEHDI | FATHI AHMAD | Issue Writer Certificate

Keywords

BandalQ1

like spur dikeQ1

90 degree bendQ1

submerged conditionQ1

maximum scour depthQ1

Abstract

One of the ways to control the erosion in the outer bend of rivers is to use spur dikes. In recent years, the efficiency, affordability and environmental suitability of traditional spur dikes has been criticized. Therefore the importance of adopting methods which are both cost-effective and eco-friendly has been addressed. The Bandal-like spur dike is a combination of a permeable and an impermeable spur dike, which is usually used in Indian Sub-Continents for riverbank protection and improvement of navigation conditions in alluvial rivers. It is made of bamboo therefore it is inexpensive and environmental friendly. In this research the effect of the permeability percentage of the Bandal-like structure on the maximum scour depth around it in a 90 degree mild bend flume and in submerged condition is investigated. Therefore a series of impermeable spur dikes (0% permeability) and Bandal-like structures with (33, 50 and 64) percent permeability are placed in the flume and examined under four different Froude numbers (0. 21, 0. 23, 0. 26, 0. 29). The results showed that the maximum scour depth around the Bandal-like structure is considerably less than the maximum scour depth around impermeable spur dikes. Also by increasing the permeability percentage of the Bandal-like structures the maximum scour depth around it decreases.

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APA: Copy

KOOCHAK, PARISA, KASHEFIPOUR, SEYED MAHMOOD, GHOMESHI, MEHDI, & FATHI, AHMAD. (2018). Investigation of the effect of the Bandal-like permeability on the maximum scour depth in a 90 degree bend and in submerged condition. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, 17(1 ), 97-109. SID. https://sid.ir/paper/363849/en

Vancouver: Copy

KOOCHAK PARISA, KASHEFIPOUR SEYED MAHMOOD, GHOMESHI MEHDI, FATHI AHMAD. Investigation of the effect of the Bandal-like permeability on the maximum scour depth in a 90 degree bend and in submerged condition. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY[Internet]. 2018;17(1 ):97-109. Available from: https://sid.ir/paper/363849/en

IEEE: Copy

PARISA KOOCHAK, SEYED MAHMOOD KASHEFIPOUR, MEHDI GHOMESHI, and AHMAD FATHI, “Investigation of the effect of the Bandal-like permeability on the maximum scour depth in a 90 degree bend and in submerged condition,” JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, vol. 17, no. 1 , pp. 97–109, 2018, [Online]. Available: https://sid.ir/paper/363849/en

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