Numerical Investigation of Vortex Generator on Controlling Flow Field of Centrifugal Pump Based on Response Surface Method
Publish place: Journal of Applied Fluid Mechanics، Vol: 17، Issue: 8
Publish Year: 1403
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JAFM-17-8_015
تاریخ نمایه سازی: 22 خرداد 1403
Abstract:
The performance and life of centrifugal pumps can be severely impacted by cavitation. In this study, a vortex generator was placed on the blades of the first-stage impeller of a BB۴ multistage centrifugal pump to investigate its effect on the local flow field. The response surface method was employed to design various solutions based on the vortex generator's arrangement position, height, and rotation angle and the optimum parameters were φ = ۲۰°, θ = ۱۰°, and h = ۱.۲۱۱۴ mm. The results showed that a pressure rise occurred at the corresponding position of the vortex generator, and the pressure variation ranges from ۱.۹۹%-۸.۹۱%, which is closely related to the height parameter of the vortex generator. In the flow field near the vortex generator, the velocity increased and then decreased along the vertical direction of the blade wall, reaching a maximum height of ۱.۵ mm. Additionally, the low-velocity zone formed at the end of the vortex generator gradually became larger with the downward movement of the arrangement position, and its velocity varies in the range of about ۱.۵ m/s-۱۵.۷ m/s, and the pressure varies in the range of about ۱۴,۰۰۰ Pa-۱۲۵,۰۰۰ Pa. This research is crucial for understanding the cavitation control principle of vortex generators in centrifugal pumps.
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Authors
N. Qiu
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, ۲۱۲۰۱۳, China
M. Li
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, ۲۱۲۰۱۳, China
J. Wu
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, ۲۱۲۰۱۳, China
H. Zhu
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, ۲۱۲۰۱۳, China
P. Xu
Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, ۲۱۲۰۱۳, China
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