The Effect of L-shaped Spur Dikes on Reynolds Shear Stress in a Bend
محل انتشار: دهمین سمینار بین المللی مهندسی رودخانه
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 633
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شناسه ملی سند علمی:
IREC10_043
تاریخ نمایه سازی: 8 آذر 1396
چکیده مقاله:
In this research, a bend channel with a 180 degree central angle (curvature radius to channel width equal to 2) was designed and built in the hydraulic laboratory of Persian Gulf University in order to help better understand complicated flow pattern in a sharp bend. Vectrino velocimeter was employed to measure velocity components and determine bed shear stress. This paper studied the effect of the length of L-shaped spur dikes on the Reynolds shear stress variations. The results of such experiments indicated that a 67% increase in spur dike length would cause bed shear stress to increase by about 53%.
کلیدواژه ها:
نویسندگان
Mohammad Vaghefi
Assistant Professor of Hydraulic Structures, Department of Civil Engineering, Persian Gulf University, Bushehr, Iran.
Maryam Akbari
M.Sc. of Hydraulic Structures, Department of Civil Engineering, Persian Gulf University, Bushehr, Iran
Arash Adib
Associate Professor of Water Engineering, Department of Civil Engineering, Shahid Chamran University, Ahwaz, Iran