Experimental Investigation of Flow in Lateral Intakes in Curved Channels

Document Type : Original Article

Authors

1 Faculty Member of Islamic Azad University (Tehran South-Branch)

2 Assoc. prof., Tarbiat Modares University

3 Assis. Prof., Power and Water University of Technology

Abstract

Diverted flow has been the subject of interest for researchers and hydraulic engineers for many years. In general, diversion flow can be categorized as natural and artificial flow. Natural flow diversion usually occurs as braiding or cutoff in meander rivers, while artificial flow is man-made to divert flow by lateral intake channels for water supply. According to the research done so far, flow patterns have been identified to be non-uniform and three dimensional in the vicinity of the lateral intake. The rate of flow diversion is influenced by the separation zone, resulted from vortices. In most of the research works, the main hydraulic and geometric parameters that have been studied are intake location, diversion angle, main channel flow and Froude number. To assess the flow diversion rate in rivers, experimental studies were made on a rectangular fixed bed U-shape channel with a rectangular fixed bed straight channel as a lateral intake. Experiments were carried out for different Froude numbers, intake locations and diversion angles to obtain a relationship between the so-called hydraulic parameters and diversion flow rate.

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Iran-Water Resources Research
Volume 2, Issue 2
June 2006
Pages 78-87

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History

  • Receive Date: 11 August 2005
  • Accept Date: 07 September 2006

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