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Numerical study of structural parameters influencing flow in a lunular valveless pump
Lipeng He1, Zheng Zhang1, Yongjun Miao2
1College of Mechanical and Electrical Engineering, Changchun University of Technology, Changchun 130012, China.
The Review of Scientific Instruments
|March 2, 2021
Summary
A novel lunular piezoelectric pump design significantly reduces backflow, enhancing performance in medical and engineering applications. This study validates computational fluid dynamics for optimizing pump design.
Area of Science:
- Biomedical Engineering
- Fluid Dynamics
- Mechanical Engineering
Background:
- Valveless piezoelectric pumps face challenges with backflow, limiting their efficiency in applications like medical transportation and lubrication.
- Optimizing piezoelectric pump design is crucial for improving performance and expanding their use in various fields.
Purpose of the Study:
- To design and develop a lunular piezoelectric pump to mitigate the backflow phenomenon.
- To computationally analyze and experimentally validate the performance of the novel pump design.
Main Methods:
- Three-dimensional flow field analysis using ANSYS Computational Fluid X.
- Iterative design improvement based on numerical simulation results.
- Prototype fabrication and experimental performance verification.
Main Results:
- The lunular piezoelectric pump design demonstrated reduced backflow and enhanced performance.
- Maximum flow rate per unit area reached 404.812 µl/min.
- Maximum back pressure achieved was 22.3 cmH2O, validating simulation accuracy.
Conclusions:
- The lunular piezoelectric pump design offers superior performance compared to conventional designs.
- ANSYS Computational Fluid X is a reliable tool for predicting piezoelectric pump performance and guiding structural optimization.
- The developed optimization method is effective for improving piezoelectric pump efficiency and broadening application scope.
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