Next Article in Journal
Optimal Cooling Load and COP Relationship of a Four-Heat-Reservoir Endoreversible Absorption Refrigeration Cycle
Previous Article in Journal
Entropy Production and Irreversible Processes -from the perspective of continuous topological evolution.
Article Menu

Article Versions

Export Article

Open AccessArticle
Entropy 2004, 6(3), 304-315; doi:10.3390/e6030304

Entropy Analysis for Non-Newtonian Fluid Flow in Annular Pipe: Constant Viscosity Case

1
Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, P.O. Box 1913, Dhahran 31261, Saudi Arabia
2
Technical Education Faculty, Afyon Kocatepe University, Afyon, Turkey
3
Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, P.O. Box 805, Dhahran 31261, Saudi Arabia
*
Authors to whom correspondence should be addressed.
Published: 6 June 2004
Download PDF [243 KB, uploaded 24 February 2015]

Abstract

In the present study, non-Newtonian flow in annular pipe is considered. The analytical solution for velocity and temperature fields is presented while entropy generation due to fluid friction and heat transfer is formulated. The third grade fluid with constant properties is accommodated in the analysis. It is found that reducing non-Newtonian parameter increases maximum velocity magnitude and maximum temperature in the annular pipe. Total entropy generation number attains high values in the region close to the inner wall of the annular pipe, which becomes significant for low non-Newtonian parameters. Increasing Brinkman number enhances entropy generation number, particularly in the region close to the annular pipe inner wall.
Keywords: non-Newtonian; third grade fluid; annular pipe; entropy non-Newtonian; third grade fluid; annular pipe; entropy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yilbas, B.S.; Yürüsoy, M.; Pakdemirli, M. Entropy Analysis for Non-Newtonian Fluid Flow in Annular Pipe: Constant Viscosity Case. Entropy 2004, 6, 304-315.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top