Physical Modeling of Subsurface Flow System of Collection River Bed

Document Type : Original Article

Authors

1 MSc Graduated of Water and Science Engineering Department. Ferdowsi University of Mashhad., Mashhad., Iran

2 Associate Prof. of Water and science Engineering Department. Ferdowsi University of Mashhad., Mashhad., Iran

3 Assistant Prof. of Water and Science Engineering Department. Ferdowsi University of Mashhad.,Mashhad., Iran

Abstract

The type of rivers are dry or seasonal in arid or semiarid zone and current flowing through them is short or if there is no flow. One of the best methods to divert the flow in the river basin system is implementation with subsurface drainage network in the river bed A laboratory model for study the effects of hydraulic and geometric characteristics of the intake flow rate diversion was designed , Which the possibility measuring the inflow and outflow of diversion was considered.in this study were evaluated the effect of bed slope intake and diameter size of particle on diversion flow in two condition, water level constant and without control input discharge . The results showed that the slope of the porous medium tangible impact on current of deviation is in a state of constant water level. But the steep increase in input mode increases the deviation is negligible in Dubai. The 20% increase in diameter drains, in case the input of 9% and 20% in fixed alignment surface water drainage flow improves.The SPSS were using to obtain an equations that by them can estimate the diversion flow base of head flow hydraulic conductivity in porous media.

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References

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Iranian Journal of Irrigation & Drainage
Volume 10, Issue 3 - Serial Number 57
July and August 2016
Pages 294-306

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