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Three-dimensional numerical investigation of hybrid nanofluids in chain microchannel under electrohydrodynamic actuator
Abstract
Energy efficiency enhancement methods have received considerable attentionwithin the industry and scientific community, owing to the rising concern ofglobal energy sustainability. The present article attempts to scrutinize the effectsof electrohydrodynamics and nanofluids on the rate of heat transfer and fluidflow in the 3-D chain microchannels. Improved heat exchangers (e.g., chainmicrochannel) would have a key role in increasing of the performance of suchsystems since they provide efficient thermal management needed for morerobust computational power. To date, analysis of electrohydrodynamics andnanofluids in the chain microchannel was not comprehensively discussed. Here,steady-state, laminar, and three-dimensional chain microchannel are numeric-ally modeled based on a control volume method in Fluent. Results show thatby increasing the volume fraction of nanoparticles, the viscosity of the nanofluidincreases leading to an increase in pressure drops. Moreover, Nusselt at Re¼125, 250, 500 and 1000 for hybrid nanofluid (; AL2O3¼; CuO¼4%) is 1.206,1.541, 2.075 and 2.707, respectively which, in turn, depicts surging by 22.94%,24.17%, 24.70% and 24.707% in comparison to water, respectively. In addition,at low Reynolds number (0.416Re4:166Þ, the lower Reynolds results indecreasing of percentage of pressure drop. Meanwhile, imposing electrohydro-dynamic (V¼30 KV) at Re¼125, 250, 500 and 1000 leads to increasing by 23%,22%, 20% and 18% of Nusselt number in comparison to absence of electricfield, respectively. It means that the considered effect of the increasing theNusselt number at lower Reynolds number is more effective. Moreover, heattransfer rises with augmentation of supplied voltage and Reynolds number.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1080/10407782.2022.2150342
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
no. 83,
pages 1146 - 1173,
ISSN: 1040-7782 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Amiri M., Mikielewicz D.: Three-dimensional numerical investigation of hybrid nanofluids in chain microchannel under electrohydrodynamic actuator// NUMERICAL HEAT TRANSFER PART A-APPLICATIONS -Vol. 83,iss. 10 (2023), s.1146-1173
- DOI:
- Digital Object Identifier (open in new tab) 10.1080/10407782.2022.2150342
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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