Numerical investigation on heat dissipation of Al<sub>2</sub>O<sub>3</sub> nanofluid based on dual synthetic jets

DONG Zhaofeng; DENG Xiong; LUO Zhenbing; PENG Can; KANG Ying; HE Wei; ZHANG Jianyuan; YU Xinchen

doi:10.7638/kqdlxxb-2023.0159

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Numerical investigation on heat dissipation of Al₂O₃ nanofluid based on dual synthetic jets

更新时间：2026-07-27

- Numerical investigation on heat dissipation of Al₂O₃ nanofluid based on dual synthetic jets
- Vol. 42, Issue 8, Pages: 10-22(2024)
- 作者机构：
  
  1. 国防科技大学空天科学学院,长沙,410073
  2. 国防科技大学前沿交叉学科学院,长沙,410073
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2023.0159
  CLC： TK172
- Published：2024
- 稿件说明：
移动端阅览
董昭锋, 邓雄, 罗振兵, 等. 基于合成双射流的Al₂O₃纳米流体散热数值研究[J]. 空气动力学学报, 2024, 42(8): 10−22. DOI: 10.7638/kqdlxxb-2023.0159

DONG Zhaofeng, DENG Xiong, LUO Zhenbing, et al. Numerical investigation on heat dissipation of Al₂O₃ nanofluid based on dual synthetic jets[J]. 2024, 42(8): 10-22. DOI: 10.7638/kqdlxxb-2023.0159.
董昭锋, 邓雄, 罗振兵, 等. 基于合成双射流的Al₂O₃纳米流体散热数值研究[J]. 空气动力学学报, 2024, 42(8): 10−22. DOI: 10.7638/kqdlxxb-2023.0159 DOI：

DONG Zhaofeng, DENG Xiong, LUO Zhenbing, et al. Numerical investigation on heat dissipation of Al₂O₃ nanofluid based on dual synthetic jets[J]. 2024, 42(8): 10-22. DOI: 10.7638/kqdlxxb-2023.0159. DOI：

摘要

使用Al

纳米流体对基于合成双射流激励器的通道强化换热进行了数值研究，分析了不同体积分数的纳米流体对通道冷却性能的影响。激励器工作后，膜片往复振动，在射流口产生了交替吸入与喷出的射流并冲击基板，装置的冷却性能大大提高。同时，纳米颗粒的加入增大了流体的导热系数，流体传热性能有所提高，但同时也增加了进出口压降。引入了综合性能评价因子

FOM

和整体传热增强度

DTE

，发现随着纳米流体体积分数的增加，

FOM

和

DTE

也增大，这表明使用纳米流体后，整体装置的冷却性能有一定程度的提升。此外，分析了激励器频率和等效振幅对散热的影响，结果表明：频率对装置整体散热性能影响较小；随着等效振幅增大，射流速度增大，芯片温度降低，装置整体冷却性能更好；激励器工作后也同样影响纳米颗粒在通道内的分布情况，每一时刻下纳米颗粒的分布都不尽相同，且聚集在基板底部的纳米颗粒将会增强换热效果，这也是影响整个装置散热性能的重要因素。

Abstract

In the present paper

the enhancement of heat transfer based on dual synthetic jets actuator (DSJA) in a channel with Al

nanofluid is numerically studied

and the effects of nanofluid volume fraction on the cooling performance is analyzed. The reciprocating vibration of the actuator’s diaphragm produces alternately inhaled and ejected jets impacting the substrate at the jet port

improving the cooli

ng performance of the device significantly. Meanwhile

nanoparticles increase the thermal conductivity of the fluid

thereby improving the heat transfer performance

but the pressure drops at the inlet and outlet are increased. It is found that the figure of merit (FOM) and degree of thermal enhancement (DTE) values increase with the nanofluid volume fraction

indicating the improvement of the cooling performance to a certain extent by using nanofluids. Moreover

this paper also analyzes the influence of the frequency and equivalent amplitude of the actuator on heat dissipation. The results show that the frequency barely affects the overall heat dissipation performance of the device. By comparison

as the equivalent amplitude increases

the magnitude of the jet velocity increases

the chip temperature decreases

and the cooling performance of the device is better. The working actuator also affects the distribution of nanoparticles in the channel

manifested by the temporally varying distributions of nanoparticles. Those nanoparticles gathered at the substrate bottom will enhance the heat transfer

an essential factor affecting the heat dissipation of the device.

关键词

Keywords

references

TAO W Q. Multiscale numerical simulation of heat transfer and flow problems: methods and applications[M]. Beijing: Science Press, 2009(in Chinese).

MUDAWAR I . Assessment of high-heat-flux thermal management schemes[J ] . IEEE Transactions on Components and Packaging Technologies, 2001 , 24 ( 2 ): 122 − 141 .

ESHGARF H, NADOOSHAN A A, RAISI A . A review of multi-phase and single-phase models in the numerical simulation of nanofluid flow in heat exchangers[J ] . Engineering Analysis with Boundary Elements, 2023 , 146 : 910 − 927 .

HO C J, PENG J K, YANG T F, et al. On the assessment of the thermal performance of microchannel heat sink with nanofluid[J]. International Journal of Heat and Mass Transfer, 2023, 201: 123572. 2023. DOI: 10.1016/j.ijheatmasstransfer.2022.123572

DATTA A, KUMAR S, HALDER P . Heat transfer and thermal characteristics effects on moving plate impinging from Cu-water nanofluid jet[J ] . Journal of Thermal Science, 2020 , 29 ( 1 ): 182 − 193 .

ISSA R J . A review on thermophysical properties and nusselt number behavior of Al 2 O 3 nanofluids in heat exchangers[J ] . Journal of Thermal Science, 2021 , 30 ( 2 ): 418 − 431 .

CHEN Z W, QIAN P, HUANG Z Z, et al . Study on flow and heat transfer of liquid metal in the microchannel heat sink[J ] . International Journal of Thermal Sciences, 2023 , 183 : 107840 .

JACOB A, ANANDHU R, LEENA R, et al . Experimental and numerical investigations of synthetic jet used for electronic cooling[J ] . Journal of Physics:Conference Series, 2019 , 1355 ( 1 ): 012008 .

YU R H Z, BIN ISMAIL M A, RAMDAN M I, et al. Experimental study of cooling performance of pneumatic synthetic jet with singular slot rectangular orifice[C]// 5th International Conference on Education, Concept, and Application of Green Technology, Semarang, Indonesia, 2017.

LUO Z B. Principle of synthetic jet and dual synthetic jets, and their applications in jet vectoring control and micro-pump[D]. Changsha: National University of Defense Technology, 2006(in Chinese).

KANG Y, LUO Z B, DENG X, et al . Numerical study of a liquid cooling device based on dual synthetic jets actuator[J ] . Applied Thermal Engineering, 2023 , 219 : 119691 .

DENG X. Research on vector-controlling characteristic of dual synthetic jets and its applications in heat transfer enhancement[D]. Changsha: National University of Defense Technology, 2015(in Chinese).

HE W. Study on the spray and its characteristics of heat transfer enhancement based on dual synthetic jets[J]. Changsha: National University of Defense Technology, 2019 (in Chinese).

LIN J, FANG L G . Recent progress of technology and application of heat transfer enhancement of nanofluids[J ] . Chemical Industry and Engineering Progress, 2008 , 27 ( 4 ): 488 − 494 (in Chinese).

YU F, LI Q, XUAN Y M . Experimental investigation of submerged impinging jet using nanofluids[J ] . Journal of Engineering Thermophysics, 2010 , 31 ( 12 ): 2097 − 2100 (in Chinese).

AMBREEN T, KIM M H . Effects of variable particle sizes on hydrothermal characteristics of nanofluids in a microchannel[J ] . International Journal of Heat and Mass Transfer, 2018 , 120 : 490 − 498 .

HADI N H, KESHAVARZ M M . CFD investigation of local properties of Al 2 O 3 /water nanofluid in a converging microchannel under imposed pressure difference[J ] . Advanced Powder Technology, 2017 , 28 ( 3 ): 763 − 774 .

TAFAKHORI M, KALANTARI D, BIPARVA P . , et al. Assessment of Fe 3 O 4 -water nanofluid for enhancing laminar convective heat transfer in a car radiator[J ] . Journal of Thermal Analysis and Calorimetry, 2021 , 146 ( 2 ): 841 − 853 .

LI J H, ZHANG X L, XU B, et al . Nanofluid research and applications: A review[J ] . International Communications in Heat and Mass Transfer, 2021 , 127 : 105543 .

WANG P, LV J Z, BAI M L, et al . A numerical investigation of impinging jet cooling with nanofluids[J ] . Nanoscale and Microscale Thermophysical Engineering, 2014 , 18 ( 4 ): 329 − 353 .

LAM P A K, PRAKASH K A . Thermodynamic investigation and multi-objective optimization for jet impingement cooling system with Al 2 O 3 /water nanofluid[J ] . Energy Conversion and Management, 2016 , 111 : 38 − 56 .

MANCA O, MESOLELLA P, NARDINI S, et al . Numerical study of a confined slot impinging jet with nanofluids[J ] . Nanoscale Research Letters, 2011 , 6 ( 1 ): 188 .

LAU G E, MOHAMMADPOUR J, LEE A . Cooling performance of an impinging synthetic jet in a microchannel with nanofluids: An Eulerian approach[J ] . Applied Thermal Engineering, 2021 , 188 : 116624 .

CORCIONE M . Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids[J ] . Energy Conversion and Management, 2011 , 52 ( 1 ): 789 − 793 .

LEE A, YEOH G H, TIMCHENKO V, et al. Effect of variable properties on heat transfer in a micro-channel with a synthetic jet[J]. Computational Thermal Sciences, 2013, 5(5): 369-388. 2013.

PENG L, LUO Z B, DENG X, et al . Experimental investigation on characteristics of flow field and propulsion of dual synthetic jets in water[J ] . Acta Aerodynamica Sinica, 2017 , 35 ( 2 ): 290 − 298 (in Chinese).

MOHAMMADPOUR J, SALEHI F, LEE A, et al . Nanofluid heat transfer in a microchannel heat sink with multiple synthetic jets and protrusions[J ] . International Journal of Thermal Sciences, 2022 , 179 : 107642 .

XUAN Y M, LI Q . Investigation on convective heat transfer and flow features of nan ofluids[J ] . Journal of Heat Transfer, 2003 , 125 ( 1 ): 151 − 155 .

HU Y W, HE Y R, QI C, et al . Experimental and numerical study of natural convection in a square enclosure filled with nanofluid[J ] . International Journal of Heat and Mass Transfer, 2014 , 78 : 380 − 392 .

HO C J, LIN C C. Experiments on natural convection heat transfer of a nanofluid in a square enclosure[C]// International Heat Transfer Conference, Sydney, Australia, 2006.

WANG D M, CHENG P, QUAN X J . A solid-liquid local thermal non-equilibrium lattice Boltzmann model for heat transfer in nanofluids. Part II: Natural convection of nanofluids in a square enclosure[J ] . International Journal of Heat and Mass Transfer, 2019 , 130 : 1358 − 1365 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Coherent structure evolution and entrainment effect of dual synthetic jets: effect of operating frequency

Flow field control characteristics of dual synthetic jet thrust vectoring

Numerical study of leading-edge vortex control of a strake-wing at large angles of attack based on dual synthetic jets

Research on longitudinal aerodynamic control characteristics of flying wing based on leading-edge dual synthetic jets

Modal analysis of dual syntehtic jets based on POD method

Related Author

Luo Zhenbing

Deng Xiong

Zhao Zhijie

Peng Wenqiang

Liang Xinyu

Liu Yuanyuan

ZHAO Zhijie

WANG Yangxiao

Related Institution

College of Aeronautics and Astronautics, National University of Defense Technology, Changsha

School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an

College of Aerospace Science and Engineering, National University of Defense Technology

AI问答

⁰

Numerical investigation on heat dissipation of Al2O3 nanofluid based on dual synthetic jets

DOI：10.7638/kqdlxxb-2023.0159

摘要

Abstract

关键词

Keywords

references

Numerical investigation on heat dissipation of Al₂O₃ nanofluid based on dual synthetic jets