Bathymetery and flow numerical simulation in curved channels by adjusting the different passing discharge of flow
محل انتشار: دهمین کنگره بین المللی مهندسی عمران
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,051
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شناسه ملی سند علمی:
ICCE10_0623
تاریخ نمایه سازی: 19 تیر 1394
چکیده مقاله:
The bend presence caused changes in flow patterns. In the present study, using Fluent software, flow pattern and bathymetery simulated in 120° sharp bend in the four different discharges. For verification of the numerical model, first, a 90° sharp bend is simulated and compared with available experimental results. Then 120°bend will be evaluated. In curved channels, with increasing discharge of flow, the superelevation percentage of the water surface in the section located before the bend is decreasing. In the 60° cross section, the dimensionless amount of changes in water level, in discharge 4.5, 9, 12 and 15 liter per second, are respectively, 0.109, 0.108, 0.09 and 0.079 that with the discharge increasing, are ascending. In the interior sections of the bend, the transverse slope of the water surface in the inner half-width always is greater than outer half-width of the channel, So this slope is non-linear in sharp bends.
کلیدواژه ها:
نویسندگان
Azadeh Gholami
Ph.D. Candidate, Department of Civil Engineering, Razi University, Kermanshah, Iran.
Salma Ajeel Fenjan
M.Sc. Student, Department of Civil Engineering, Razi University, Kermanshah, Iran
Hossein Bonakdari
Associate. Prof, Department of Civil Engineering, Razi University, Kermanshah, Iran.
Ali Akbar akhtari
assistant Prof, Department of Civil Engineering, Razi University, Kermanshah, Iran. Water and Wastewater Research Center, Razi University, Kermanshah, Iran.