The Flow Field and Free Surface Pattern of the Submerged Side Weir with Different Lengths

Mahmodinia, Sharareh; Javan, Mitra; Eghbalzadeh, Afshin

doi:10.1007/s13369-014-1058-y

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…Therefore, it is necessary to find an appropriate solution for this problem. A side weir is responsible for discharging an additional flow from the main route in urban sewage systems, irrigation and drainage networks, and flood control in a river and controlling water levels [1,2]. One method to improve the hydraulic performance of side weirs is to increase the discharge capacity of the weirs.…”

Section: Introductionmentioning

confidence: 99%

Discharge Coefficient of a C-Type Piano Key Side Weir at 30° and 120° Sections of a Curved Channel

et al. 2018

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A piano key side weir (PKSW) is a non-linear weir that discharge exceeds linear weirs by increasing the length in width. PKSW can be used in side weirs with space limitation. As side weirs are extensively used in flood control, water level control in rivers, and water supply channels, it is necessary to use PKSW as side weirs. This research discusses the discharge coefficient of a PKSW by assessing a C-type PKSW at 30° and 120° sections of a channel with a longitudinal curve. Dimensional analysis was used for identifying the parameters effective in the discharge coefficient. The effects of these parameters are examined by analysing the effective parameters. Finally, an empirical relationship has been proposed for determining the discharge coefficient based on the dimensionless parameters for calculating the discharge coefficient with the correlation coefficient of 0.88 and the mean error of 0.091. The influence of the parameter on the PKSW is more than that of the remaining parameters: With an increase in the value of this parameter, considering decreases in the length of the deviation and a lack of submerged inlet keys, the coefficient of discharge increases.

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Section: Introductionmentioning

confidence: 99%