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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i1.10
pages 1-8

Numerical Investigation of Temperature-Dependent Viscosity Variation Effects on Thermally Developing Forced Convection through a Porous Medium

Kamel Hooman
Mechanical Engineering Department, Persian Gulf University, Bushehr 75168, Iran
S. R. Mohebpour
School of Engineering, Islamic Azad University, Bushehr, Iran

RESUMO

Thermally developing laminar flows in ducts with temperature-dependent viscosity variation are analyzed, where the Arrhenius model for the variation of the viscosity with the temperature is made. The Darcy flow model is assumed. The case of isothermal boundaries is treated. It is observed that the developing velocity and temperature profiles differ from those of constant property case. It is also concluded that the fully developed region will be reached later than the constant property case. However, no significant change has been observed in the value of the fully developed Nusselt number since the fully developed velocity distribution is the same as the constant property case and so is the temperature profile.


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