Evaluation of hydraulic performance of Nazanin dam side channel spillway

المؤلفون المشاركون

Ahmad, Shahin S.
Aziz, Yasin Wsu

المصدر

ZANCO Journal of Pure and Applied Sciences

العدد

المجلد 30، العدد 1 (sup) (28 فبراير/شباط 2018)، ص ص. 62-69، 8ص.

الناشر

جامعة صلاح الدين قسم النشر العلمي

تاريخ النشر

2018-02-28

دولة النشر

العراق

عدد الصفحات

8

التخصصات الرئيسية

علوم الأرض و المياه و البيئة

الملخص EN

Flow in the side channel spillway is very complex due to discharge changing along the side channel called spatially varied flow (SVF).

a physical model for Nazanin dam side channel spillway, which has been designed by hidroconstructia company with scale ratio 1:40 constructed in the laboratory to evaluate the flow characteristics in the spillway.

the flow depth at several locations along centerline, right and left side of the spillway were measured for discharges ranging from (2.56 – 33.45) l/s.

the performance of the spillway includes determination of discharge coefficient of the side weir, height of side walls for the spillway components and energy dissipation at the downstream of stilling basin.

furthermore, water surface profile was computed in the trough channel using one dimensional (1d) solution.

the analysis of the data collected from physical model showed that at higher flow rates the discharge coefficient was reduced and side weir can pass extra 18% of the discharge presented in the design report.

overtopping was observed clearly over transition, chute channel and stilling basin side walls.

the stilling basin could not dissipate energy efficiently.

it also observed that the percentage of energy dissipation rate was inversely proportional with the discharge.

furthermore, it was found that the 1d solution adequately predicted the water surface profile in the trough channel.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Ahmad, Shahin S.& Aziz, Yasin Wsu. 2018. Evaluation of hydraulic performance of Nazanin dam side channel spillway. ZANCO Journal of Pure and Applied Sciences،Vol. 30, no. 1 (sup), pp.62-69.
https://search.emarefa.net/detail/BIM-1403020

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Ahmad, Shahin S.& Aziz, Yasin Wsu. Evaluation of hydraulic performance of Nazanin dam side channel spillway. ZANCO Journal of Pure and Applied Sciences Vol. 30, no. 1 (Supplement) (2018), pp.62-69.
https://search.emarefa.net/detail/BIM-1403020

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Ahmad, Shahin S.& Aziz, Yasin Wsu. Evaluation of hydraulic performance of Nazanin dam side channel spillway. ZANCO Journal of Pure and Applied Sciences. 2018. Vol. 30, no. 1 (sup), pp.62-69.
https://search.emarefa.net/detail/BIM-1403020

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references : p. 69

رقم السجل

BIM-1403020