Three-dimensional modelling of flow, over the cylindrical weir using Flow-3D software
محل انتشار: دهمین سمینار بین المللی مهندسی رودخانه
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 532
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شناسه ملی سند علمی:
IREC10_136
تاریخ نمایه سازی: 8 آذر 1396
چکیده مقاله:
Cylindrical weir is one of the hydraulic structures model that due to simple design, ease of floaters passage and sustainable pattern of flow is widely applied. In this article, flow over the cylindrical weir with 7.5 (cm) diameter on flume by 6 (m) length was modelled in Flow-3D software as three-dimensional and the results were compared with the physical model, also the results of three turbulence models LES, RNG and k-Ɛ were compared and it was found that the results of K-, turbulence model best fit the results of the physical model. Root Mean square Error of comparing the numerical discharge coefficient with physical quantities was obtained 0.3427, which represents a good agreement hydraulic characteristics obtained from numerical and physical model, it was also observed, cylindrical weir discharge coefficient values is greater than 1.
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نویسندگان
Saeed farzin
Assistant professor, Department of civil engineering, Semnan university, Semnam, Iran
Elham zamiri
M.S. student, Department of civil engineering, Semnan university, Semnam, Iran
Hojat karami
Assistant professor, Department of civil engineering, Semnan university, Semnam, Iran
Shahab nayyer
M.S. student, Department of civil engineering, Semnan university, Semnam, Iran