Numerical Simulation of the Three-Dimensional Turbulent Flow in Roto-Jet Pump

Abstract:

In order to study the internal flow characteristics of roto-jet pump, the standard turbulence model and SIMPLEC algorithm were used to calculate the three-dimensional turbulence flow field under design condition. The simulation results reveal the internal flow phenomena of roto-jet pump, which shows the pressure near the suction surface and the inlet edge of impeller is minimum, and the cavitations is easy to occur . At the same time, the circumfluence and flow separation phenomenon is not found in the vicinity of the short blade, which is used to shunt the flow. The pressure gradient changed little in the rotor cavity. Is easy to form vortex at manifold import corners, there is no vortex generated on the second corner when the diffusion tube is used. The results obtained in this research provide a theoretical foundation for improving pump performance and reduce the hydraulic loss.

• Periodical: Applied Mechanics and Materials (Volumes 341-342)
• Pages: 375-378
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.341-342.375
• Online since: July 2013
• Authors: Fang Neng Zhu, Dong Liu, Xiao Yong Yang, Chun Lin Wang
• Keywords: Impeller, Internal Flow, Numerical Simulation, Roto-Jet Pump, Rotor Cavity

References

[1] Steve Osbom. Roto-Jet Pump: 25 years new [J]. World Pumps, 1996(12): 32-35.

DOI: 10.1016/s0262-1762(99)81000-1

[2] Li trip, Yin Xiao, Xiao Jiahuang. roto-jet grouting pump hydraulic performance test pump technology . 2000. 5.

[3] Xuxiu Sheng, Chang-zhi, Wang Yu-xia, left jade flower . RA-2/130 rotary injection pump developed [J]. Petroleum Machinery, 2006 (3): 43-45.

[4] Zouxue Lian, Chen Hongxun. Three-dimensional numerical simulation of roto-jet pumps impeller internal flow irrigation and drainage machinery.

[5] Xu Hong. roto-jet pump set flow tube internal flow calculation. Petrochemical equipment . 2005. 3.

[6] Xue-Yi Qi, Lide Zhong, Yang Junhu roto-jet pump impeller design method of pump technology . 1999. 6.

[7] The Lide Zhong, Yang Junhu, Yan, Weihong Min. Roto-jet pump flow parts design study of fluid mechanical . 2005. 9.

[8] Liu Zhengxian, Wang Dou, Xu Lianhua. Numerical simulation of unsteady discharge flow with fluctuation in positive discharge blower [J]. Chinese Journal of Mechanical Engineering, 2009, 22(2): 214-220.

DOI: 10.3901/cjme.2009.02.214

[9] ZHOU Li, XI Guang, Gao Limin, etc. Numerical study on the unsteady interaction flow in a centrifugal compressor stage [J]. Chinese Journal of Mechanical Engineering, 2004, 17(4): 609-613.

DOI: 10.3901/cjme.2004.04.609

[10] KRAUSEN, ZAHRINGERK, PAPE. Time-resolved particle imaging velocity for the investigation of rotating stall in a radial pump [J]. Experiments in Fluids, 2005, 39: 1.

DOI: 10.1007/s00348-005-0935-2