Entropy Generation Analysis for a Non-Axisymmetric Flow Over a Rotating Porous Disk
M. Baghban1, J. A. Esfahani2, Z. Shams3
1University of Gonabad, Gonabad, Iran
2Ferdowsi University of Mashhad, Mashhad, Iran
3Quchan University of Technology, Quchan, Iran
Keywords: rotating disk, injection rate, Brinkman number, entropy generation, Bejan number
Abstract
In the present study, entropy generation in a non-axisymmetric steady-state incompressible viscous flow over a single rotating porous disk is investigated analytically. The dimensionless form of the local and total entropy generation caused by frictional and thermal effects are derived. The effects of the injection rate and Brinkman number on the entropy generation are revealed. It is found that there exists an optimal injection rate for each Brinkman number, which minimizes the total entropy generation.
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