Analysis of Transient Flow Field in a Medical Composite Plunger Pump Based on CFD
DOI:
https://doi.org/10.54097/pgww8z34Keywords:
Compound Pump, Plunger Pump, Check Valve, Dynamic Mesh, Numerical SimulationAbstract
This study introduces a medical composite plunger pump and elaborates on its structure and working principle in detail. To investigate the dynamic characteristics of the fluid during the suction and exhaust phases of the medical composite plunger pump, a gap model was constructed based on dynamic mesh technology, enabling coupled simulation of the flow field within the pump and the motion of the check valve spool. Through numerical simulation, the overall flow field velocity, pressure distribution, and pulsation characteristics of the plunger pump were analyzed under a motor speed condition of 140 r/min. The resulting velocity and pressure contour plots of the fluid domain over time facilitated a fluid-structure interaction analysis of the flow field variations within one cycle of the medical composite plunger pump. This approach provides a viable method for further exploring the flow field characteristics of the medical composite plunger pump and offers data support for subsequent optimization of its operating parameters and enhancement of its performance.
Downloads
References
[1] J. Dong, Y. S. Liu, H. Wang, L. J. Wei, and D. F. Wu, "Simulation of Unsteady Flow Characteristics of the Reciprocating Pump Check Valve for High Pressure and High Flow Water Medium," Journal of Fluids Engineering, vol. 144, no. 3, 031206, 2022. DOI: https://doi.org/10.1115/1.4052177
[2] G. R. Wang, L. Zhong, X. He, Z. Q. Lei, G. Hu, R. Li, and Y. H. Wang, "Dynamic Behavior of Reciprocating Plunger Pump Discharge Valve Based on Fluid Structure Interaction and Experimental Analysis," PLOS ONE, vol. 10, no. 10, e0140396, 2015. DOI: https://doi.org/10.1371/journal.pone.0140396
[3] J. M. Bergada, S. Kumar, D. L. Davies, and J. Watton, "A complete analysis of axial piston pump leakage and output flow ripples," Applied Mathematical Modelling, vol. 36, no. 4, pp. 1731-1751, 2012. DOI: https://doi.org/10.1016/j.apm.2011.09.016
[4] X. Z. Mi, Q. W. Li, F. Wang, and X. J. Zhao, "Flow field simulation of reciprocating compressor based on dynamic mesh technology," in 2017 IEEE 21st International Conference on Computer Supported Cooperative Work in Design (CSCWD), 2017, pp. 567-572. DOI: https://doi.org/10.1109/CSCWD.2017.8066756
[5] Z. J. Gu, C. Q. Bai, and H. Y. Zhang, "Experimental and Numerical Research on Fluid Dynamic Interaction Effects of Reciprocating Pump-Pipeline System," Journal of Pressure Vessel Technology, vol. 145, no. 3, 031401, 2023. DOI: https://doi.org/10.1115/1.4057059
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Academic Journal of Science and Technology
This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
