Rayleigh-Bénard convection of Al2O3/water nanofluids in a cavity considering sedimentation, thermophoresis, and Brownian motion

C. J. Ho, De Siou Chen, Wei Mon Yan, Omid Mahian

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

This paper aims to investigate the Rayleigh-Bénard convection of Al2O3/water nanofluids in a cavity considering the sedimentation, thermophoresis, and Brownian motion. For this purpose, a numerical simulation is carried out using finite volume method to obtain the flow patterns and heat transfer characteristics of nanofluid flow inside the cavity. The results are presented for volume fractions up to 4%, Rayleigh numbers between 104 and 8×104 where the temperature difference between top and bottom walls is between 2 and 10°C. To validate the numerical solution, comparisons are made between the numerical results and experimental data available in the literature. The comparisons unfold that the results of numerical work are in a good agreement with the previous experimental results.

Original languageEnglish
Pages (from-to)22-26
Number of pages5
JournalInternational Communications in Heat and Mass Transfer
Volume57
DOIs
Publication statusPublished - 2014 Oct

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

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