Heat transfer of a non-newtonian viscoinelastic fluid in an axisymmetric channel with a porous wall for turbine cooling application

Kurtcebe, C; Erim, MZ

doi:10.1016/s0735-1933(02)00417-7

Heat transfer of a non-newtonian viscoinelastic fluid in an axisymmetric channel with a porous wall for turbine cooling application

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Kurtcebe C., Erim M.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, vol.29, no.7, pp.971-982, 2002 (SCI-Expanded)

Publication Type: Article / Article
Volume: 29 Issue: 7
Publication Date: 2002
Doi Number: 10.1016/s0735-1933(02)00417-7
Journal Name: INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.971-982
Istanbul Technical University Affiliated: No

Abstract

In the present paper, a method for cooling turbine disks with a non-newtonian viscoinelastic fluid is analyzed. The velocity and temperature fields are obtained numerically by applying a perturbation method and the Nusselt number is determined as a function of the cross viscosity parameter K, the Reynolds number Re, and the Prandtl number Pr. It is found that increasing the cross viscosity parameter K decreases the wall friction parameter f"(0) and increases the Nusselt number. (C) 2002 Elsevier Science Ltd.