Tesla valve is a particular check valve that can be used as a fluidic diode, but has no moving parts, and shows promising applications in macro- and microfluidic systems. Fluidic diode indicates that the inflow direction of a Tesla valve affects the pressure drop, allowing fluid to pass easily in one direction while presenting higher resistance in the reverse direction. Although previous studies have shown that the diode performance of such valves can be significantly improved by placing a series of valve units in a compact cascade, the reason is still unclear. In this study, the effect of the internal flow, especially the inflow status of each valve unit, on the diode characteristics of a multistage Tesla valve is investigated numerically and experimentally. Through a proper mathematic treatment, we derived the limiting diodicity in terms of the number of units and demonstrated that the diodicity enhancement of a multistage Tesla valve with its number of units was mainly due to the distorted inflow from subsequent units. To further verify this hypothesis, we elongated the space between subsequent units and found as expected the diodicity declined. The results indicate that distorted inflow can enhance the diodicity of a Tesla valve.
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May 2023
Research Article|
May 09 2023
On the diodicity enhancement of multistage Tesla valves
Wang Pengfei (王鹏飞)
;
Wang Pengfei (王鹏飞)
(Formal analysis, Methodology, Validation, Writing – review & editing)
1
Department of Mechanical Engineering, Hangzhou City University
, Hangzhou 310015, China
2
Zhejiang Provincial Engineering Center of Integrated Manufacturing Technology and Intelligent Equipment, Hangzhou City University
, Hangzhou 310015, China
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Hu Peilu (胡珮璐)
;
Hu Peilu (胡珮璐)
(Formal analysis, Methodology, Software, Validation, Writing – original draft)
1
Department of Mechanical Engineering, Hangzhou City University
, Hangzhou 310015, China
3
State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University
, Hangzhou 310027, China
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Liu Li (刘丽)
;
Liu Li (刘丽)
(Funding acquisition, Validation)
1
Department of Mechanical Engineering, Hangzhou City University
, Hangzhou 310015, China
2
Zhejiang Provincial Engineering Center of Integrated Manufacturing Technology and Intelligent Equipment, Hangzhou City University
, Hangzhou 310015, China
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Xu Zhongbin (许忠斌)
;
Xu Zhongbin (许忠斌)
(Investigation)
2
Zhejiang Provincial Engineering Center of Integrated Manufacturing Technology and Intelligent Equipment, Hangzhou City University
, Hangzhou 310015, China
4
Institute of Process Equipment, College of Energy Engineering, Zhejiang University
, Hangzhou 310027, China
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Wang Wei (王位)
;
Wang Wei (王位)
a)
(Methodology, Writing – review & editing)
1
Department of Mechanical Engineering, Hangzhou City University
, Hangzhou 310015, China
2
Zhejiang Provincial Engineering Center of Integrated Manufacturing Technology and Intelligent Equipment, Hangzhou City University
, Hangzhou 310015, China
a)Author to whom correspondence should be addressed: [email protected]
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Benoit Scheid
Benoit Scheid
(Writing – review & editing)
5
TIPs, Université Libre de Bruxelles
, B-1050 Brussels, Belgium
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a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 35, 052010 (2023)
Article history
Received:
February 03 2023
Accepted:
April 22 2023
Citation
Pengfei Wang, Peilu Hu, Li Liu, Zhongbin Xu, Wei Wang, Benoit Scheid; On the diodicity enhancement of multistage Tesla valves. Physics of Fluids 1 May 2023; 35 (5): 052010. https://doi.org/10.1063/5.0145172
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