In order to study the characteristics of the different formed free surface vortices at vertical hydraulic intakes, three sets of experiments were conducted. The spiral flow was detected using the Particle Tracking Velocimetry (PTV) measurement technique in three dimensions (3D) by installing two cameras at above and side of the model. The dimensions of model were 2000mm in length, 1300mm in width and 1500mm in height. Through the experiments, extensive data including tangential (Vθ), radial (Vr) and axial (Vz) velocities and their variations with the changing vortex center in different vortex classes, were recorded and analyzed. Using the obtained results, a 3D flow path was drawn for each class of the formed vortex. Moreover, changes in the diameter of the vortex core (Dvo) in the three different classes of vortex were investigated and its changes along the vortex axis were measured. Results showed that the average of Dvo/D (D is the intake diameter) was about 0.14, 0.2 and 0.23 for vortices Class C, B and A, respectively.
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Khanarmuei MR, Rahimzadeh H, Sarkardeh H (2015). Investigating the effect of intake withdrawal direction on critical submergence and strength of vortices. Modares Mechanical Engineering 14 (10), 35-42 (in Persian).
Khanarmuei MR, Rahimzadeh H, Kakuei AR, Sarkardeh H (2016). Effect of vortex formation on sediment transport at dual pipe intakes. Sadhana 41(9):1055–1061.
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Khanarmuei MR, Rahimzadeh H, Sarkardeh H (2019). Effect of dual intake direction on critical submergence and vortex strength, Journal of Hydraulic Research, 57 (2), 272-279.
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Monshizadeh M, Tahershamsi A, Rahimzadeh H, Sarkardeh H (2017). Comparison between hydraulic and structural based anti-vortex methods at intakes. The European Physical Journal Plus 132, 1-11.
Monshizadeh M, Tahershamsi A, Rahimzadeh H, Sarkardeh H (2018). Vortex dissipation using a hydraulic-based antivortex device at intakes. International Journal of Civil Engineering 16, 1137-1144.
Tahershamsi A, Rahimzadeh H, Monshizadeh M, Sarkardeh H (2018). A new approach on anti-vortex devices at water intakes including a submerged water jet. The European Physical Journal Plus, 133(4):143.
Tahershamsi A, Monshizadeh M, Rahimzadeh H, Sarkardeh H (2018). An experimental study on free surface vortex dynamics. Meccanica, 1-9.
Aghajani N, Karami H, Mousavi SF, Sarkardeh H (2019). Experimental study of the effect of the trashrack on the vortex at the intake of the hydroelectric power plants in various flow rates and submergence depths. Journal of Dam and Hydroelectric Powerplant, 6(21):49-62 (in Persian).
Aghajani N, Karami H, Sarkardeh H, Mousavi SF (2020). Experimental and numerical investigation on effect of trash rack on flow properties at power intakes. ZAMM‐Journal of Applied Mathematics and Mechanics, 100(9).
Amiri SM, Zarrati AR, Roshan R, Sarkardeh H (2011). Surface vortex prevention at power intakes by horizontal plates. Proceedings of the Institution of Civil Engineers – Water Management 164(4): 193–200.
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Sarkardeh H, Jabbari E, Zarrati AR, Tavakkol S (2014). Velocity field in a reservoir in the presence of an air-core vortex. Proc Inst Civ Eng Water Manag 167(6):356–364.
Bashtani A, Sarkardeh H (2022). Design of an Experimental Setup for Free Surface Vortex at Intakes (Including a Review on the Constructed Laboratory Models). Journal of Hydraulic Structures, 8(2), 68-83.
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Articles in Press, Accepted Manuscript Available Online from 06 October 2024
Hamidi, S. , Sarkardeh, H. , & Bashtani, A. (2024). Spiral Flow Measurement at Vertical Intakes Using PTV Method. Journal of Hydraulic Structures, (), 41-50. doi: 10.22055/jhs.2024.47215.1304
MLA
ShahWali Hamidi; Hamed Sarkardeh; Ali Bashtani. "Spiral Flow Measurement at Vertical Intakes Using PTV Method", Journal of Hydraulic Structures, , , 2024, 41-50. doi: 10.22055/jhs.2024.47215.1304
HARVARD
Hamidi, S., Sarkardeh, H., Bashtani, A. (2024). 'Spiral Flow Measurement at Vertical Intakes Using PTV Method', Journal of Hydraulic Structures, (), pp. 41-50. doi: 10.22055/jhs.2024.47215.1304
CHICAGO
S. Hamidi , H. Sarkardeh and A. Bashtani, "Spiral Flow Measurement at Vertical Intakes Using PTV Method," Journal of Hydraulic Structures, (2024): 41-50, doi: 10.22055/jhs.2024.47215.1304
VANCOUVER
Hamidi, S., Sarkardeh, H., Bashtani, A. Spiral Flow Measurement at Vertical Intakes Using PTV Method. Journal of Hydraulic Structures, 2024; (): 41-50. doi: 10.22055/jhs.2024.47215.1304