Through numerical simulation and experiments analysis, it is indicated that the hydraulic and anticavitation performance of a centrifugal pump with twisted gap drainage blades based on flow control theory can be significantly improved under certain operating conditions. In order to introduce the technology of gap drainage to practical applications, we put forward the parameter formulas of the twisted gap drainage blade to design three-dimensional new type blade, which are also proved to be effective for enhancing the dynamic characteristics of the centrifugal pump. Furthermore, a practical centrifugal pump is redesigned to be a twisted gap drainage impeller with the same structure size as the original impeller, and the nonlinear hybrid Reynolds-averaged Navier–Stokes (RANS)/large eddy simulation (LES) method is employed to simulate the hydraulic dynamic characteristics. Numerical simulation results show that the hydraulic performance and dynamic characteristics of the redesigned impeller centrifugal pump are significantly enhanced. In experiments, the twisted gap drainage blades structure not only remarkably improves the hydraulic performance and the pressure pulsation characteristics of the centrifugal pump but also reduces the vibration intensity.
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September 2019
Research-Article
Research on Improving the Dynamic Performance of Centrifugal Pumps With Twisted Gap Drainage Blades
Zheng-Chuan Zhang,
Zheng-Chuan Zhang
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: zhangzc9898@163.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: zhangzc9898@163.com
Search for other works by this author on:
Hong-Xun Chen,
Hong-Xun Chen
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: chenhx@shu.edu.cn
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: chenhx@shu.edu.cn
Search for other works by this author on:
Jian-Wu He,
Jian-Wu He
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 2386590618@qq.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 2386590618@qq.com
Search for other works by this author on:
Chao Liu
Chao Liu
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 312896533@qq.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 312896533@qq.com
Search for other works by this author on:
Zheng-Chuan Zhang
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: zhangzc9898@163.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: zhangzc9898@163.com
Hong-Xun Chen
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: chenhx@shu.edu.cn
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: chenhx@shu.edu.cn
Zheng Ma
Jian-Wu He
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 2386590618@qq.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 2386590618@qq.com
Hui Liu
Chao Liu
Shanghai Institute of
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 312896533@qq.com
Applied Mathematics and Mechanics,
Shanghai University,
Shanghai 200072, China
e-mail: 312896533@qq.com
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received April 28, 2018; final manuscript received February 2, 2019; published online March 18, 2019. Assoc. Editor: Satoshi Watanabe.
J. Fluids Eng. Sep 2019, 141(9): 091101 (15 pages)
Published Online: March 18, 2019
Article history
Received:
April 28, 2018
Revised:
February 2, 2019
Citation
Zhang, Z., Chen, H., Ma, Z., He, J., Liu, H., and Liu, C. (March 18, 2019). "Research on Improving the Dynamic Performance of Centrifugal Pumps With Twisted Gap Drainage Blades." ASME. J. Fluids Eng. September 2019; 141(9): 091101. https://doi.org/10.1115/1.4042885
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