This paper presents an experimental investigation of the flow fields in a centrifugal pump by particle image velocimetry (PIV) technique with two different tracer particles, all designed for the same operating point. In order to systematically analyze the tracking characteristics of tracer particles once used in centrifugal pump by Basset–Boussinesq–Oseen (BBO) equation, aluminum powder (AP, with high density ratio and small diameter) and hollow glass spheres (HGS, with neutral density and large diameter) were selected. The velocity fields obtained for AP and HGS were presented and compared, in order to enhance the understanding of their tracking properties in rotating impeller. The results show that AP and HGS give nearly the same phase-averaged velocity fields except at two small regions. BBO extended equation by the phase average theory in a centrifugal pump was applied to explain the first difference, namely, why the velocity of HGS is higher than that of AP in the low-speed zone. In addition, the mean vorticity distributions for AP and HGS show high strength velocity micelles with different directions of development and dissemination, which causes the second difference in energy exchange. As a consequence, HGS tends to conglomerate closer to the pressure side (PS) near the impeller outlet than AP
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June 2016
Research-Article
Comparison of Flow Fields in a Centrifugal Pump Among Different Tracer Particles by Particle Image Velocimetry
Yalin Li,
Yalin Li
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: yuanfangfriend@126.com
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: yuanfangfriend@126.com
Search for other works by this author on:
Shouqi Yuan,
Shouqi Yuan
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: Shouqiy@ujs.edu.cn
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: Shouqiy@ujs.edu.cn
Search for other works by this author on:
Xikun Wang,
Xikun Wang
Maritime Research Centre,
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: cxkwang@ntu.edu.sg
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: cxkwang@ntu.edu.sg
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Soon Keat Tan,
Soon Keat Tan
Maritime Research Centre,
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: ctansk@ntu.edu.sg
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: ctansk@ntu.edu.sg
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Jieyun Mao
Jieyun Mao
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: ujsmjy@163.com
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: ujsmjy@163.com
Search for other works by this author on:
Yalin Li
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: yuanfangfriend@126.com
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: yuanfangfriend@126.com
Shouqi Yuan
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: Shouqiy@ujs.edu.cn
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: Shouqiy@ujs.edu.cn
Xikun Wang
Maritime Research Centre,
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: cxkwang@ntu.edu.sg
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: cxkwang@ntu.edu.sg
Soon Keat Tan
Maritime Research Centre,
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: ctansk@ntu.edu.sg
Nanyang Technological University,
50 Nanyang Avenue,
Singapore 639798
e-mail: ctansk@ntu.edu.sg
Jieyun Mao
National Research Center of Pumps,
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: ujsmjy@163.com
Jiangsu University,
Zhenjiang,
Jiangsu 212013, China
e-mail: ujsmjy@163.com
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received January 15, 2015; final manuscript received January 14, 2016; published online March 24, 2016. Assoc. Editor: Peter Vorobieff.
J. Fluids Eng. Jun 2016, 138(6): 061105 (14 pages)
Published Online: March 24, 2016
Article history
Received:
January 15, 2015
Revised:
January 14, 2016
Citation
Li, Y., Yuan, S., Wang, X., Keat Tan, S., and Mao, J. (March 24, 2016). "Comparison of Flow Fields in a Centrifugal Pump Among Different Tracer Particles by Particle Image Velocimetry." ASME. J. Fluids Eng. June 2016; 138(6): 061105. https://doi.org/10.1115/1.4032562
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