Energy dissipation potentials of grouped spur dikes in an open channel
Yükleniyor...
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Spur dikes are frequently preferred fow regulation structures, especially for open channels
and coastal morphology due to their ease of application and economics. Since spur dikes
placed on the edge of the stream isolated (single) or in groups do not have a length across
the entire channel width, they can also play the role of a semi-permeable weir in the stream.
In this study, the efects of spur dikes of the same length and height placed asymmetrically
on both sides of the channels at fve diferent angles on the fow were investigated experimentally and numerically. The energy dissipation ratios of the spur dikes in the channel
were calculated in submerged and unsubmerged fow conditions. A total of 45 tests were
performed using nine diferent discharges, and comparisons were made by transferring
the same characteristics from the experimental conditions to the numerical environment.
According to the obtained data, the situation with the highest energy dissipation occurred
at θ=120°. At low discharges, more vortex was observed in the eyes between the dikes, but
as the discharge increased, the vortex seen in the fow decreased. The velocity distributions
on the channel cross-sections were also presented to obtain fow patterns along disturbed
fow in the channel. At the maximum discharge, the θ=30° placement showed the highest
velocities in most cross-sections, while the lowest velocities were observed at the θ=120°.
Açıklama
Anahtar Kelimeler
Grouped spur dikes, Energy dissipation, Open channel, Angular layout, CFD
Kaynak
Water Resources Management
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
Sayı
Künye
Ulu, A. E., Aydın, M. C. ve Önen, F. (2023). Energy dissipation potentials of grouped spur dikes in an open channel. Water Resources Management, 1-16.
