Discharge and flow field of the circular channel along the side weir-Reference-Cited by-同舟云学术

Discharge and flow field of the circular channel along the side weir

Published:2015-04 Issue:4 Volume:42 Page:273-280
ISSN:0315-1468
Container-title:Canadian Journal of Civil Engineering
language:en
Short-container-title:Can. J. Civ. Eng.

Author:

Azimi Hamed¹²,Hadad Hazhar³,Shokati Zakarya³,Salimi Mohammad Sajad⁴

Affiliation:

1. Department of Civil Engineering, Razi University, Kermanshah, Iran.

2. Water and Wastewater Research Center, Razi University, Kermanshah, Iran.

3. Department of Civil Engineering, Mahabad branch, Islamic Azad University, Mahabad, Iran.

4. Department of Civil Engineering, Islamic Azad University, Kermanshah, Iran.

Abstract

The side weir is one of the most important hydraulic structures that is used by hydraulic engineers for adjusting and controlling flow in urban waste collection systems, irrigation and drainage networks. In this study, an equation is proposed for computing side weir discharge located on circular channels. The equation computes the side weir discharge with sufficient accuracy. Then, the RNG k–ε turbulence model is used for simulating the turbulence of the flow field and the free surface flow variations are modeled using volume of fluid scheme. Comparing experimental results with numerical simulations indicates acceptable accuracy of the numerical model. Also, the side weir discharge coefficients, flow free surface variation, behavior of dividing stream surface and variations of stagnation point height for different discharges within a circular channel along a side weir were examined.

Publisher

Canadian Science Publishing

Subject

General Environmental Science,Civil and Structural Engineering

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/cjce-2014-0443

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