Transitional Flow between Orifice and Nonorifice Regimes at a Rectangular Sluice Gate

Alminagorta, Omar; Merkley, Gary P.

doi:10.1061/(asce)ir.1943-4774.0000071

Cited by 12 publications

(1 citation statement)

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“…The flow rates of the experimental study were obtained using an acoustic Doppler velocity meter (ADV) (Esmailzadeh et al 2014). The article by Alminagorta and Merkley (2009) investigates the value of a coefficient (Co) that is used to define the threshold between the two regimes, and also the hydraulic transition between the orifice and nonorifice flow regimes in a rectangular channel sluice gate was analyzed. The results show that there is always an orifice flow when the Co coefficient value is lower than 0.83, and there is always a nonorifice flow when the coefficient is greater than 1.00 (Alminagorta and Merkley, 2009).…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of sluice gates with different sill types under submerged flow conditions

Aydın¹,

Ulu²

2017

Bitlis Eren University Journal of Science and Technology

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A B S T R A C T ComputationalFluid Dynamics (CFDs) analyze software package programs recently gained a high importance in hydraulic engineering. The present study investigates how different sills will affect in terms of flow dynamics. In the study, velocity contours and velocity magnitudes for each sill shapes are investigated. The velocity magnitudes are compared by taking 4 cross-sections from the downstream region. Results showed that sills located at downstream of the channel decrease the velocity magnitude at per selected location. Thereby it was concluded that the sill usages could protect the channel bottom from the cavitational and scouring damages due to high flow velocities. In this respect the study will help to the hydraulic designs in this scope.

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Section: Introductionmentioning

confidence: 99%