Fully Developed Laminar Forced Convection in a Circular Duct for Herschel-Bulkley Fluids With Viscous Dissipation and Axial Heat Conduction

被引：1

作者：

Khatyr, Rabha ^{[1
]}

Khalid-Naciri, Jaafar ^{[1
]}

Il Idrissi, Ali ^{[2
]}

机构：

[1] Hassan II Univ, Fac Sci Ain Chock, Lab Mech, BP 5366, Casablanca 20100, Morocco

[2] Hassan II Univ, Fac Sci Ben MSik, Lab Mech, BP 7955, Casablanca 20100, Morocco

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2017年 / 139卷 / 10期

关键词：

laminar forced convection; viscous dissipation; Herschel-Bulkley fluid; asymptotic behavior; variable wall heat flux; PLATES; FLOW;

D O I：

10.1115/1.4036690

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The asymptotic behavior of laminar forced convection in a circular duct for a Herschel-Bulkley fluid of constant properties is analyzed. The viscous dissipation and the axial heat conduction effects in the fluid are both considered. The asymptotic bulk and mixing temperature field, and the asymptotic values of the bulk and mixing Nusselt numbers are determined for every boundary condition, enabling a fully developed region. In particular, it is proved that whenever the wall heat flux tends to zero, the asymptotic Nusselt number is zero. The obtained results are compared to other existing solutions in the literature for Newtonian and non-Newtonian cases.

引用

页数：5

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