Fluid simulation and hydraulic experimental analysis of flow-channel type axial-flow blood pump(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2021年第10期
- Page:
- 1308-1315
- Research Field:
- 生物材料与力学
- Publishing date:
Info
- Title:
- Fluid simulation and hydraulic experimental analysis of flow-channel type axial-flow blood pump
- Author(s):
- XIONG Chi; TANG Xiaoyan; YUN Zhong; FENG Longfei
- School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
- Keywords:
- Keywords: artificial heart axial-flow blood pump impeller hydraulic performance fluid dynamics
- PACS:
- R318；TH312
- DOI:
- DOI:10.3969/j.issn.1005-202X.2021.10.023
- Abstract:
- Abstract: Aiming at the hydraulic performance of the blood pump, the flow-channel type axial-flow blood pump made by the research group is taken as the object, and a fluid dynamics analysis model for the blood pump is established through computational fluid dynamics, so as to investigate the effect of each structural parameter of the blood pump impeller on the hydraulic performance of the blood pump, and to conduct simulation calculation and analysis on the hydraulic performance of the blood pump under different parameters including the number of vanes, hub ratio, vane profile installation angle, flow-channel width, inlet and outlet axial diameter ratio. In addition, the effects of the front and rear guide vanes on the hydraulic performance of the blood pump were studied by comparing hydraulic performance with streamline diagram. The titanium alloy was used to make the blood pump entity, and the blood pump hydraulic test bench was built by simulating the human blood circulation loop, and the fluid medium was a mixture of pure water and glycerin. The actual hydraulic performance of the blood pump was tested at different rotational speeds. The results of hydraulic experiment indicate that the flow-channel type axial-flow blood pump has preferable hydraulic performance which was well matched with hydraulic performance simulation results obtained by computational fluid dynamics, proving that the blood pump performance can initially meet the human physiological needs.
Last Update: 2021-10-29