Mixed convection boundary layer flow of viscoelastic nanofluid past a horizontal circular cylinder: Case of constant heat flux

The steady of two-dimensional convection boundary layer flow of a viscoelastic nanofluid over a circular cylinder is investigated in this paper. Carboxymethyl cellulose solution (CMC) is chosen as the base fluid and copper as a nanoparticle with the Prandtl number Pr = 6.2. The governing boundary la...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-09, Vol.890 (1), p.12052
Main Authors: Mahat, Rahimah, Rawi, Noraihan Afiqah, Kasim, Abdul Rahman Mohd, Shafie, Sharidan
Format: Article
Language:English
Subjects:
Boundary layer flow
Carboxymethyl cellulose
Circular cylinders
Convection
Dimensionless numbers
Friction reduction
Heat
Heat flux
Heat transfer coefficients
Nanofluids
Nanoparticles
Parameters
Partial differential equations
Physics
Prandtl number
Skin friction
Temperature profiles
Two dimensional boundary layer
Two dimensional flow
Velocity distribution
Viscoelasticity
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Summary:The steady of two-dimensional convection boundary layer flow of a viscoelastic nanofluid over a circular cylinder is investigated in this paper. Carboxymethyl cellulose solution (CMC) is chosen as the base fluid and copper as a nanoparticle with the Prandtl number Pr = 6.2. The governing boundary layer partial differential equations are transformed into dimensionless forms. Then they are solved numerically by using the Keller-Box method. This paper focus on the effects of selected parameter on the flow and heat transfer characteristics and be presented in graphs. The results show that, the velocity profiles and the temperature profiles are increased by increasing the values of nanoparticles volume fraction. While velocity profile decreases when viscoelastic parameter is increase. The reverse trend is observed for the temperature profiles. Also, the values of reduced skin friction are increased by increasing mixed convection parameter, but the values of heat transfer coefficient produce an opposite behaviour with an increasing in mixed convection parameter.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/890/1/012052