Optics and Precision Engineering, Volume. 33, Issue 8, 1202(2025)
Output performance of valveless piezoelectric pumps with airfoil baffles at various angles of attack
Figures & Tables(10)
Fig. 3. Assembly diagram of the valveless piezoelectric pump with airfoil baffles
Fig. 6. Distribution of vortex structures within the internal flow field
Table 1. Structural design parameters of the valveless piezoelectric pumps with airfoil baffles
View tableView in ArticleTable 1. Structural design parameters of the valveless piezoelectric pumps with airfoil baffles
Parameters Value/mm Pump chamber diameter 40 Pump chamber depth 4 Vibrator diameter 45 Vibrator thickness
Chord length of airfoil
Length of the flow tube ahead of the airfoil
Length of the flow tube behind the airfoil
Inner diameter of tube
Outside diameter of tube
Length of the flow tube
0.25
10
10
10
8
12
30
Table 2. Results of the mesh independence verification
View tableView in ArticleTable 2. Results of the mesh independence verification
No. Mesh number Net output flow ratio G1 1.6 million 99.897% G2 1.8 million 99.954% G3
G4
2.0 million
2.2 million
99.977%
/
Table 3. Flow resistance coefficient and impedance ratio of tubes with airfoil baffles
View tableView in ArticleTable 3. Flow resistance coefficient and impedance ratio of tubes with airfoil baffles
Airfoil NACA0015 NACA63-412 Angle 0° 5° 10° 15° 0° 5° 10° 15° ξa 2.476 2.677 3.434 4.916 2.445 2.662 3.475 4.846 ξb 2.590 2.760 3.517 4.936 2.545 2.748 3.516 4.865 ηnd 1.046 1.030 1.024 1.004 1.041 1.032 1.012 1.003
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Ming KUANG, Jian XIONG, Lu WANG, Yadong HUANG, Jun HUANG, Siyao ZHANG. Output performance of valveless piezoelectric pumps with airfoil baffles at various angles of attack[J]. Optics and Precision Engineering, 2025, 33(8): 1202
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Received: Jan. 20, 2025
Accepted: --
Published Online: Jul. 1, 2025
The Author Email: Jun HUANG (huangjun@ujs.edu.cn)
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