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


Kurtcebe C., Erim M.

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

  • Publication Type: Article / Article
  • Volume: 29 Issue: 7
  • Publication Date: 2002
  • Doi Number: 10.1016/s0735-1933(02)00417-7
  • Title of Journal : INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
  • Page Numbers: pp.971-982

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.