Viscous Dissipation Impact on Free Convection Flow of Cu-water Nanofluid in a Circular Enclosure with Porosity Considering Internal Heat Source

In this work, free convection of Cu-water nanofluid in an enclosure by considering internally heat generated in the porous circular cavity and the impacts of viscous dissipation are numerically evaluated by control volume finite element method (CVFEM). The outer and inner sides of the circular porou...

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Bibliographic Details
Published inJournal of applied and computational mechanics Vol. 5; no. 4; pp. 717 - 726
Main Authors Abdul Sattar Dogonchi, Ali J. Chamkha, Seyyed Masoud Seyyedi, Mehdi Hashemi-Tilehnoee, Davood Domiri Ganji
Format Journal Article
LanguageEnglish
Published Shahid Chamran University of Ahvaz 01.06.2019
Subjects
CVFEM
Free convection of nanofluid
Nusselt number
Porous circular enclosure
Viscous dissipation
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Summary:In this work, free convection of Cu-water nanofluid in an enclosure by considering internally heat generated in the porous circular cavity and the impacts of viscous dissipation are numerically evaluated by control volume finite element method (CVFEM). The outer and inner sides of the circular porous enclosure are maintained at a fixed temperature while insulating the other two walls. The impacts of diverse effective parameters including the Rayleigh number, viscous dissipation, and nanofluid concentration on features of heat transfer and fluid flow are examined. Moreover, a new correlation for the average Nusselt number is developed according to the study’s active parameters. It can be deduced by the results that the maximum value of the temperature is proportional to the viscous dissipation parameter.
ISSN:2383-4536
2383-4536
DOI:10.22055/jacm.2019.27465.1402