The effect of the shear rate-dependent thermal conductivity of non-newtonian fluids on the heat transfer in a pipe flow

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14 Citations (Scopus)

Abstract

The present study investigates the effect of the shear rate-dependent thermal conductivity of non-Newtonian fluids on the heat transfer enhancement in a pipe flow. The constant heat flux as thermal boundary condition was adopted in the thermally developed region. The present analytical results show the heat transfer enhancement over those of a shear rate-independent thermal conductivity fluid. The heat transfer coefficient ratio (h/ho) linearly increase with the non-dimensional average velocity difference which is the product of the shear rate-dependence of the thermal conductivity and wall-shear rate.

Original languageEnglish
Pages (from-to)665-678
Number of pages14
JournalInternational Communications in Heat and Mass Transfer
Volume23
Issue number5
DOIs
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

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

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