Hydraulic Performance of Asymmetric Labyrinth Side Weirs Located on a Straight Channel

Parvaneh, Ali; Borghei, Seyed Mehdi; Ghazizadeh, Mohammadreza Jalili

doi:10.1061/(asce)ir.1943-4774.0000455

Cited by 19 publications

(9 citation statements)

References 19 publications

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“…7 shows a photo for the triangular labyrinth weir test of this study. The results show that the present numerical simulation predictions matched well with the current test outcomes and the experimental results of the previous studies [20,41,42] with maximum mean absolute percentage error less than 1% along the centerline and approximately 3% at weir bank profile.…”

Section: Results Of Surface Profilesupporting

confidence: 85%

“…The verification for the numerical model based on the results of the present experimental study and on the previous experimental studies [20,41,42] for different range of Froude number. Different types of the side weir have been simulated to compare the efficiency for these types of the side weir and show the compatibility of the numerical simulation for analyzing the hydrodynamic behavior of the flow.…”

Section: Numerical Description Of Test Casesmentioning

confidence: 62%

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Hydrodynamic Behavior Simulation of Flow Performance over Labyrinth Side Weir

Hussein,

Jalil

2023

Pol. J. Environ. Stud.

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Side weir is one of the most common diversion structures that used from many decades in irrigation, flow control, sewer, drainage engineering and other hydraulic structures. It is used to convey excess flow from the parent channel into the diversion channel when the surface water elevated above the maximum crest level. The side weir overflow is considered as a special case of spatially varied flow with decreasing the flow rate. The side weirs are classified to many types, the most common types are rectangular,

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Section: Results Of Surface Profilesupporting

confidence: 85%

Section: Numerical Description Of Test Casesmentioning

confidence: 62%

Hydrodynamic Behavior Simulation of Flow Performance over Labyrinth Side Weir

Hussein,

Jalil

2023

Pol. J. Environ. Stud.

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“…1b). Performance of asymmetric labyrinth side weir was studied by (Parvaneh et al 2012). They tested asymmetric triangular labyrinth side weirs and concluded that the asymmetric shape can increase the discharge coefficient compared to the symmetric ones.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of a piano key side weir with oblique keys

Karimi

Ghazizadeh

Saneie

et al. 2019

Water & Environment J

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Side weirs deflect the approaching flow to the side channel with a specific angle. Considering this angled flow, the oblique shape of side weirs would improve the flow discharge efficiency. In this paper, a Piano Key Side Weir (PKSW) with oblique keys is proposed. Sixteen PKSWs with different key angles were studied in the laboratory, as well as two PKSWs by using CFD modelling. Flow characteristics and discharge coefficients of the proposed side weirs were investigated. Results show that a PKSW with positive key angles can decrease the flow disturbance (a phenomenon usually occurs in symmetric PKSWs), which results in higher discharge coefficients especially in high Froude numbers (F 1 > 0.35). Among the studied PKSWs with oblique keys, the best performance was achieved with a PKSW with 30° key angle. The findings of this study can be used for a better design of PKSWs.

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“…To perform a better comparison of triangular labyrinth, trapezoidal labyrinth, asymmetric labyrinth and rectangular side weirs, part of the experimental data by Borghei and Parvaneh (2011) and Parvaneh et al (2012) is presented in Table 9.…”

mentioning

confidence: 99%

“…Table 9. Range of variables studied by Borghei and Parvaneh (2011) and Parvaneh et al (2012), used in the present discussion …”

mentioning

confidence: 99%