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Journal:   IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)   SPRING 2017 , Volume 40 , Number SUPPLEMENT 1/1 ; Page(s) 13 To 25.
 
Paper: 

Develop Of Flow Resistance Equations In Mountainous Rivers Based On Experimental Study

 
 
Author(s):  Hemmati M.*, Mostafa V.
 
* WATER ENGINEERING DEPARTMENT, URMIA UNIVERSITY, URMIA, IRAN
 
Abstract: 
The aim of this research is to develop relations to estimate the flow resistance coefficients in gravel-bed channels. In this regards, the experiments were carried out in a tilting flume with length of 8m and width of 0.25 m. In this research, four different bed slopes (0.004, 0.006, 0.008 and 0.01), two gravel types (natural and crushed shapes), three mean diameter (d50) of gravels (65.3, 46.6 and 38 mm) and four discharges (0.01, 0.017, 0.024 and.031 m3/s) were used as a variables. New flow resistance equations were developed for natural and crushed gravels by using the new definitions for dimensionless variables in terms of non-dimensional hydraulic geometry equations. Also, new equations were presented to estimate Manning's roughness coefficient for both shapes. In addition, the results showed that the developed equations based on non-dimensional hydraulic geometry relations are the best way to link the mean flow velocity to the flow discharge in mountain rivers.
 
Keyword(s): HYDRAULIC GEOMETRY, GRAVEL BED, FLOW RESISTANCE EQUATIONS, PARTICLES SHAPE, MOUNTAIN RIVERS
 
 
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APA: Copy

HEMMATI, M., & MOSTAFA, V. (2017). DEVELOP OF FLOW RESISTANCE EQUATIONS IN MOUNTAINOUS RIVERS BASED ON EXPERIMENTAL STUDY. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 40(SUPPLEMENT 1/1 ), 13-25. https://www.sid.ir/en/journal/ViewPaper.aspx?id=571657



Vancouver: Copy

HEMMATI M., MOSTAFA V.. DEVELOP OF FLOW RESISTANCE EQUATIONS IN MOUNTAINOUS RIVERS BASED ON EXPERIMENTAL STUDY. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE). 2017 [cited 2022May25];40(SUPPLEMENT 1/1 ):13-25. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=571657



IEEE: Copy

HEMMATI, M., MOSTAFA, V., 2017. DEVELOP OF FLOW RESISTANCE EQUATIONS IN MOUNTAINOUS RIVERS BASED ON EXPERIMENTAL STUDY. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), [online] 40(SUPPLEMENT 1/1 ), pp.13-25. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=571657.



 
 
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