Dynamic Force Analysis on Blades of Centrifugal Pumps using Computational Fluids Dynamics Simulations
Keywords:Computational Fluid Dynamics (CFD), centrifugal pump, tangential force, absolute pressure, flow rate
Mechanical stress on the blade of a centrifugal pump is a crucial factor in the design and operation of hydraulic pumps. Therefore, in this study, the tangential force on the blade of a centrifugal pump at different flow rates and directions was investigated using Computational Fluid Dynamics (CFD) simulations. The CFD simulations were performed based on the k-? turbulence model and were validated through experimental measurements. The study revealed that the tangential force is dependent on the flow rate of the fluid being pumped, and understanding how it changes with varying flow rates is essential for optimizing the performance of the pump and preventing potential fractures. On the other hand, the absolute pressure on the blade was also investigated. The absolute pressure distributions on the blade pressure side, suction side, leading edge, and trailing edge were analyzed for different flow rates. The highest pressure distribution is found on the pressure side than the suction side. On the blade pressure side, a relatively large pressure is found near the trailing edge. Overall, the study provides insights into the complex relationship between flow rate and tangential force in centrifugal pumps and highlights the importance of understanding this relationship for successful pump design and operation.
Yu, T., et al., Numerical study on hydrodynamic characteristics of a centrifugal pump influenced by impeller-eccentric effect. Engineering Failure Analysis, 2022. 138: p. 106395.
Al-Obaidi, A.R., Numerical investigation on effect of various pump rotational speeds on performance of centrifugal pump based on CFD analysis technique. International Journal of Modeling, Simulation, and Scientific Computing, 2021. 12(05): p. 2150045.
Zhou, W., et al., Investigation of flow through centrifugal pump impellers using computational fluid dynamics. International Journal of Rotating Machinery, 2003. 9(1): p. 49-61.
Muttalli, R.S., S. Agrawal, and H. Warudkar, CFD simulation of centrifugal pump impeller using ANSYS-CFX. International Journal of Innovative Research in Science, Engineering and Technology, 2014. 3(8): p. 15553-15561.
Pei, J., S. Yuan, and J. Yuan, Dynamic stress analysis of sewage centrifugal pump impeller based on two-way coupling method. Chinese journal of mechanical engineering, 2014. 27(2): p. 369-375.
Cárdenas-Gutiérrez, J.A., G. Valencia Ochoa, and J. Duarte Forero, Parametric analysis CFD of the hydraulic performance of a centrifugal pump with applications to the dredging industry. Journal of Engineering Science and Technology Review, 2020. 13(3 (2020)): p. 8-14.
Ramakrishna, R., S. Hemalatha, and D.S. Rao, Analysis and performance of centrifugal pump impeller. Materials Today: Proceedings, 2022. 50: p. 2467-2473.
Huang, P., et al., Energy dissipation mechanism of a centrifugal pump with entropy generation theory. AIP Advances, 2021. 11(4): p. 045208.
Jia, X.-Q., et al., Internal unsteady flow characteristics of centrifugal pump based on entropy generation rate and vibration energy. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2019. 233(3): p. 456-473.
Kim, E. and A. Palazzolo, Rotordynamic force prediction of a shrouded centrifugal pump impeller—part I: numerical analysis. Journal of Vibration and Acoustics, 2016. 138(3).
Kim, J.-H., et al., Design techniques to improve the performance of a centrifugal pump using CFD. Journal of Mechanical Science and Technology, 2015. 29: p. 215-225.
Nigussie, T. and E. Dribssa, Design and CFD analysis of centrifugal pump. International Journal of Engineering Research and General Science, 2015. 3(3): p. 668-677.
Tan, L., et al., Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition. Engineering computations, 2015. 32(6): p. 1549-1566.
Wu, C., et al., Effects of blade pressure side modification on unsteady pressure pulsation and flow structures in a centrifugal pump. Journal of Fluids Engineering, 2021. 143(11).
Yan, P., et al., Computational fluid dynamics-based pump redesign to improve efficiency and decrease unsteady radial forces. Journal of fluids Engineering, 2017. 139(1).
Yedidiah, S., A study in the use of CFD in the design of centrifugal pumps. Engineering Applications of Computational Fluid Mechanics, 2008. 2(3): p. 331-343.
Menter, F.R., Turbulence modeling for engineering flows. Ansys, Inc, 2011.
Sodja, J., Turbulence models in CFD. University of Ljubljana, 2007: p. 1-18.
Wilcox, D.C., Turbulence modeling for CFD. Vol. 2. 1998: DCW industries La Canada, CA.
Mishra, P. and K. Aharwal. A review on selection of turbulence model for CFD analysis of air flow within a cold storage. in IOP conference series: Materials science and engineering. 2018. IOP Publishing.
Bai, Y., D. Appiah, and Y. Tao, Computational turbulent flow characteristics in a centrifugal pump. AIP Advances, 2022. 12(7): p. 075025.
Zhao, X., et al., Unsteady flow and pressure pulsation characteristics analysis of rotating stall in centrifugal pumps under off-design conditions. Journal of Fluids Engineering, 2018. 140(2).
Bachus, L. and A. Custodio, Know and understand centrifugal pumps. 2003: Elsevier.
Li, Y., et al., Investigation of unsteady flow in a centrifugal pump at low flow rate. Advances in Mechanical Engineering, 2016. 8(12): p. 1687814016682151.
Gülich, J.F., Centrifugal pumps. Vol. 2. 2008: Springer.
Karassik, I. and J.T. McGuire, Centrifugal pumps. 2012: Springer Science & Business Media.
Li, W., et al., Fluid-structure interaction study of a mixed-flow pump impeller during startup. Engineering computations, 2018.
How to Cite
Copyright (c) 2023 Victor Antwi
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright on any article in the International Journal of Engineering and Applied Physics is retained by the author(s) under the Creative Commons license, which permits unrestricted use, distribution, and reproduction provided the original work is properly cited.
Authors grant IJEAP a license to publish the article and identify IJEAP as the original publisher.
Authors also grant any third party the right to use, distribute and reproduce the article in any medium, provided the original work is properly cited.
Most read articles by the same author(s)
- Desmond Appiah, Victor Antwi, Michael Gyan, Kwesi , Fortune Addo-Wuver , Optical characterisation of polarised light beam under different aqueous concentrations , International Journal of Engineering and Applied Physics: Vol. 3 No. 2: May 2023