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

Sehyun Shin

doi:10.1016/0735-1933(96)00049-8

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

Sehyun Shin

Research output: Contribution to journal › Article › peer-review

16 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/h_o) 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 language	English
Pages (from-to)	665-678
Number of pages	14
Journal	International Communications in Heat and Mass Transfer
Volume	23
Issue number	5
DOIs	https://doi.org/10.1016/0735-1933(96)00049-8
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

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

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10.1016/0735-1933(96)00049-8

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AB - 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.

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

Abstract

ASJC Scopus subject areas

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