Thermal convection for a thermo-dependent yield stress fluid in an axisymmetric horizontal duct.
Author(s) : NOUAR C.
Type of article: Article
Summary
This paper deals with the combined forced and free convection heat transfer of a yield stress fluid in a horizontal duct heated uniformly with a constant heat flux density. The aim of this study is to quantify the effect of the rheological properties on the magnitude of the secondary flows induced by the thermo-dependency. Expressions for local Nusselt number and wall shear stress are given. Finally, to be consistent with the variation along the duct of the axial velocity in the central zone around the axis, due to the thermo-dependency, the pseudo-plug zone and pseudo-yield surface notions are introduced. Some characteristics of the stresses distribution within the pseudo-plug zone are discussed. [Reprinted with permission from Elsevier, Copyright, 2005].
Details
- Original title: Thermal convection for a thermo-dependent yield stress fluid in an axisymmetric horizontal duct.
- Record ID : 2006-1668
- Languages: English
- Source: International Journal of Heat and Mass Transfer - vol. 48 - n. 25-26
- Publication date: 2006/04
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