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Journal of Thermal Analysis and Calorimetry

, Volume 135, Issue 1, pp 379–391 | Cite as

Thermal transport of combined electroosmotically and pressure driven nanofluid flow in soft nanochannels

  • Guangpu Zhao
  • Yongjun JianEmail author
Article
  • 153 Downloads

Abstract

In this paper, the heat transfer characteristics of the nanofluid through a parallel plate soft nanochannel are investigated under the fully developed condition. The flow is actuated by the combined effects of pressure gradient and implied electric field. Based on the ion partitioning effect and the Debye–Hückel linearization, the analytical solutions for electrokinetic flow in such nanochannel are obtained. Meanwhile, the uniform wall heat flux is utilized in the analysis, and the influences of viscous dissipation and the Joule heating are taken into account. The results for pertinent dimensionless parameters are presented graphically and discussed in brief. The relevant result reveals that the ion partitioning effect can greatly impact the electrostatic potential, velocity and temperature distribution. Furthermore, this ion partitioning effect can exert an influence on heat transfer of the nanofluid. The present study also indicates the possibility of alteration in the nanofluid heat transfer by the use of nanoparticle volume.

Keywords

Soft nanochannel Ion partitioning effect Electrokinetic Heat transfer Nusselt number 

Notes

Acknowledgements

The work was supported by the National Natural Science Foundation of China (Grant Nos. 11472140, 11772162), the Natural Science Foundation of Inner Mongolia Autonomous Region of China (Grant No. 2016MS0106), the Foundation of Inner Mongolia Autonomous Region University Scientific Research Project (Grant No. NJZY18093), the Foundation of Inner Mongolia University of Technology (Grant No. ZD201714) and the Inner Mongolia Grassland Talent (Grant No. 12000-12102013).

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.College of SciencesInner Mongolia University of TechnologyHohhotPeople’s Republic of China
  2. 2.School of Mathematical ScienceInner Mongolia UniversityHohhotPeople’s Republic of China

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