Prediction for aerodynamic drag of piezoelectric fan in confined space

被引：0
|
作者：
Li N. [1 ]
Liu Y. [1 ]
Gao J. [1 ]
Huang Z. [2 ]
Li H. [1 ]
机构：
[1] School of Energy Science and Engineering, Nanjing Tech University, Nanjing
[2] College of Aerospace Engineering, Nanjing University of Aeronautics and astronautics, Nanjing
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2023年 / 38卷 / 09期
关键词：
aerodynamic drag; flow structure interaction; piezoelectric fan; unsteady flow; vibration response;
D O I：
10.13224/j.cnki.jasp.20210715
中图分类号：
学科分类号：
摘要：
The study focused on the correlation mechanisms and laws between the aerodynamic drag，resonance response，and the unsteady flow field of the piezoelectric fans in confined space by theoretical analysis and numerical simulation. Based on Newton’s law and added-mass mechanism of viscous fluid，the model and prediction method were established for transient aerodynamic drag and 1st order bending amplitude response of piezoelectric fan in the confined space around. The developed predictive models were validated，and the results showed that there was a good agreement with the experimental results. The amplitude response decreased sharply when the gap was smaller than 5 mm. The space-limited effects can be ignored when the gap was about 20 mm. © 2023 BUAA Press. All rights reserved.
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页码：2204 / 2213
页数：9
相关论文
共 26 条
  • [1] ARUM-KUMAR C M, MUKESH-KUMAR P C., Review on electronics cooling systems, Advances in Natural and Applied Sciences, 11, 8, pp. 271-279, (2017)
  • [2] SUFIAN S F，, ABDULLAH M Z., Heat transfer enhancement of LEDs with a combination of piezoelectric fans and a heat sink[J], Microelectronics Reliability, 68, pp. 39-50, (2017)
  • [3] LASACE C J M，, SIMONS R E., Advances in high-performance cooling for electronics, Electronics Cooling, 11, 4, pp. 22-39, (2005)
  • [4] MASSPURO M., Piezoelectric oscillating cantilever fan for thermal management of electronics and LEDs: a review, Microelectronics Reliability, 63, pp. 342-353, (2016)
  • [5] OH M H, PARK S H, KIM Y H, Et al., 3D flow structure around a piezoelectrically oscillating flat plate, European Journal of Mechanics: B Fluids, 67, pp. 249-258, (2018)
  • [6] ACIKALIN T, WAIT S M, GARIMELLA S V, Et al., Experimental investigation of the thermal performance of piezoelectric fans, Heat Transfer Engineering, 25, 1, pp. 4-14, (2004)
  • [7] TAN L, ZHANG J Z, TAN X M., Numerical investigation of convective heat transfer on a vertical surface due to resonating cantilever beam, International Journal of Thermal Sciences, 80, pp. 93-107, (2014)
  • [8] FAIRUZ Z M，, SUFIAN S F，, ABDULLAH M Z，, Et al., Effect of piezoelectric fan mode shape on the heat transfer characteristics, International Communications in Heat and Mass Transfer, 52, pp. 140-151, (2014)
  • [9] KIMBER M，, SUZUKI K，, KITSUNAI N，, Et al., Quantification of piezoelectric fan flow rate performance and experimental identification of installation effects, Orlando，FL，US: 11th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, (2008)
  • [10] KIMBER M, GARIMELLA S V, RAMAN A., Local heat transfer coefficients induced by piezoelectrically actuated vibrating cantilevers, ASME Journal of Heat Transfer, 129, pp. 1168-1176, (2007)
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