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Najma Saleem

ENTROPY PRODUCTION IN PERISTALTIC FLOW OF A SPACE DEPENDENT VISCOSITY FLUID IN ASYMMETRIC CHANNEL

ABSTRACT
In this paper, Second-law analysis has been made for the peristaltic flow of a viscous variable viscosity fluid in an asymmetric channel. The entire study is carried out in a moving frame of reference. The exact solutions of the problem have been obtained by normalizing the governing equations. The main sources of entropy generation in the peristaltic flow have been investigated. Graphical illustrations of the total entropy generation number and the Bejan number have been provided and effects of pertinent parameters of interest are discussed. It is established that the entropy generation is minimum in the expanding region of the channel. Moreover, the entropy generation rises in the cooled region of the channel by increasing the variable viscosity parameter.
KEYWORDS
entropy generation, peristaltic flow, asymmetric channel, variable viscosity fluid
PAPER SUBMITTED: 2016-10-20
PAPER REVISED: 2017-06-12
PAPER ACCEPTED: 2017-07-14
PUBLISHED ONLINE: 2017-08-05
DOI REFERENCE: https://doi.org/10.2298/TSCI161020164S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 6, PAGES [2909 - 2918]
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Entropy production in peristaltic flow of a space dependent viscosity fluid in asymmetric channel

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