Yazarlar

• Ozturk, Mualla(2)
• Aydin, A. B.(1)
• Aydin, Alp Bugra(1)
• Baylar, A.(1)
• Baylar, Ahmet(1)
• Ozkan, F.(1)
• Ozkan, Fahri(1)
• Tuna, M. C.(1)
• Tuna, Muhammed Cihat(1)

• MakaleAçık Erişim2024/r/munzur/3970
  Role of Gate Type in the Air-Demand Ratio in Closed Conduits

  Aydin, A. B.; Baylar, A.; Ozkan, F.; Tuna, M. C.; Ozturk, Mualla

  Sluice and radial gates are common devices used to control flow in closed conduits. In high-head gated conduits, the high-velocity flow exiting the gate drags and entrains a lot of air. If the air demand of the flow is not met, the pressure drop downstream of the gate will cause structural damage or cavitation. Typically, an air vent is installed immediately downstream of the gate to supply sufficient air to the flow. In this study, the effect of the conduit gate type on the air-demand ratio was investigated. The results showed that the gate type had a very significant effect on the air-demand ratio. Significantly higher air-demand ratios were observed in the conduit with a sluice gate compared to the conduit with a radial gate. The results obtained will be useful in future modeling and design processes.

  AtıfWoS1·OpenAlex1

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• MakaleAçık Erişim2021Scopus SJRQ3/r/munzur/3035
  Influence of cross-section geometry on air demand ratio in high-head conduits with a radial gate

  Aydin, Alp Bugra; Baylar, Ahmet; Ozkan, Fahri; Tuna, Muhammed Cihat; Ozturk, Mualla

  When the gate of a high-head conduit is partly opened, negative pressure draws the air in through the air vent. Air that is entrained into the water is instantly forced downstream in the form of air bubbles. When studies on high-head gated conduits were examined, it was determined that the air demand ratio varied depending on many hydraulic and geometric parameters. This work has focused on determining the effect of conduit cross-section geometry on the air-demand ratio. A series of experiments were carried out on high-head radial gated conduits having different cross-section geometries. Experimental results showed that conduit cross-section geometry had an important effect on the air demand ratio especially in small gate opening rates. Further, design equations for the air demand ratio are presented relating the air demand ratio to Froude number, gate opening rate, and the ratio of gate opening to conduit length.

  AtıfScopus7·WoS8·OpenAlex10

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