Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31103
Simulation of Internal Flow Field of Pitot-Tube Jet Pump

Authors: Iqra Noor, Ihtzaz Qamar

Abstract:

Pitot-tube Jet pump, single-stage pump with low flow rate and high head, consists of a radial impeller that feeds water to rotating cavity. Water then enters stationary pitot-tube collector (diffuser), which discharges to the outside. By means of ANSYS Fluent 15.0, the internal flow characteristics for Pitot-tube Jet pump with standard pitot and curved pitot are studied. Under design condition, realizable k-e turbulence model and SIMPLEC algorithm are used to calculate 3D flow field inside both pumps. The simulation results reveal that energy is imparted to the flow by impeller and inside the rotor, forced vortex type flow is observed. Total pressure decreases inside pitot-tube whereas static pressure increases. Changing pitot-tube from standard to curved shape results in minimum flow circulation inside pitot-tube and leads to a higher pump performance.

Keywords: Turbulence, CFD, impeller, flow circulation, high pressure pump, internal flow, pickup tube pump, rectangle channels, rotating casing

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 41

References:


[1] G. P. Sutton, Rocket propulsion elements: an introduction to the engineering of rockets. John Wiley 6 Sons, 1946.
[2] J. Meyer, L. Daróczy, and D. Thévenin, “Shape optimization of the pick-up tube in a Pitot-tube jet pump,” Journal of Fluids Engineering, vol. 139, no. 2, 2017.
[3] J. Jin, Y. Fan, W. Han, and J. Hu, “Design and analysis on hydraulic model of the ultra-low specific-speed centrifugal pump,” Procedia Engineering, vol. 31, pp. 110–114, 2012.
[4] S. Osborn, “The Roto-Jet pump: 25 years new,” World Pumps, vol. 1996, no. 363, pp. 32–36, 1996.
[5] J. S. Anagnostopoulos, “A fast numerical method for flow analysis and blade design in centrifugal pump impellers,” Computers & Fluids, vol. 38, no. 2, pp. 284–289, 2009.
[6] K. Komaki, T. Kanemoto, and K. Sagara, “Performances and Rotating Flows of Rotary Jet Pump,” 2012.
[7] X. Zou and H. Chen, “Three-Dimensional Numerical Simulation of Internal Flow within the Impeller Of Roto-Jet Pump
[J],” Drainage and Irrigation Machinery, vol. 2, 2004.
[8] J. Yang, H. Zhang, and L. Tang, “Numerical Study of the Inside Flow Field and the Impeller of Roto-jet Pump,” Journal of Xihua University (Natural Science Edition), no. 6, p. 12, 2009.
[9] W. Zang, X. C. Li, Y. Chen, and Y. T. Luo, “Numerical Study of the Inside Flow Field and the Rectangle Channel Impeller of Roto-Jet Pump,” in Applied Mechanics and Materials, 2014, vol. 529, pp. 164–168.
[10] K. Komaki, T. Kanemoto, K. Sagara, and T. Umekage, “Effect of the collector tube profile on Pitot pump performances,” in IOP Conference Series: Materials Science and Engineering, 2013, vol. 52, p. 032021.
[11] J. Meyer, L. Daróczy, and D. Thévenin, “New design approach for Pitot-tube jet pump,” 2014.
[12] C. L. Wang, C. L. Zhao, T. F. Zhang, and D. Liu, “The numerical simulation of full flow field of Roto-Jet pump and analysis of energy losses,” in Advanced Materials Research, 2012, vol. 562, pp. 1369–1372.
[13] B. Schiavello et al., “Tutorial on Special Purpose Pumps-Pitot; Progressing Cavity; Air Operated Diaphragm; And Hydraulically Actuated Diaphragm,” 1997.