RETRACTED ARTICLE: Magnetohydrodynamic 3D slip flow in a suspension of carbon nanotubes over a slendering sheet with heat source/sink

• Published in: Continuum mechanics and thermodynamics Vol. 29; no. 3; pp. 835 - 851
• Main Authors: Kumar, R. V. M. S. S. Kiran, Varma, S. Vijaya Kumar, Raju, C. S. K., Ibrahim, S. M., Lorenzini, G., Lorenzini, E.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-05-2017; Springer Nature B.V
• Subjects: Allotropy; Boundary layer thickness; Boundary layers; Carbon; Classical and Continuum Physics; Differential equations; Engineering Thermodynamics; Fluid dynamics; Friction; Friction factor; Heat; Heat and Mass Transfer; Heat transfer; Magnetohydrodynamics; Mass transfer; Multi wall carbon nanotubes; Nanofluids; Nanotechnology; Optics; Ordinary differential equations; Original Article; Partial differential equations; Physics; Physics and Astronomy; Porous media; Single wall carbon nanotubes; Slip flow; Structural Materials; Theoretical and Applied Mechanics; Three dimensional flow; Carbon nanotubes; Heat source; Multiple slips; Magnetohydrodynamic; Variable thickness sheet; Porous medium
• ISSN: 0935-1175; 1432-0959
• DOI: 10.1007/s00161-017-0563-0

Carbon nanotubes are allotropes of carbon with a cylindrical nanostructure. These cylindrical carbon molecules have unusual properties, which are valuable for nanotechnology, electronics, optics and other fields of materials science and technology. With this intention, we investigate the three-dimensional magnetohydrodynamic convective heat and mass transfer of nanofluid over a slendering stretching sheet filled with porous medium and heat source/sink. For balancing the flow, temperature and concentration slip mechanisms are also taken into account. In this investigation simulation performed by mixing the two types of carbon nanotubes, namely single- and multi-walled carbon nanotubes, into water as base fluid. The governing system of partial differential equations is transformed into nonlinear ordinary differential equations which answered by using R–K–Fehlberg-integration scheme. The impact of various pertinent parameters on velocity, temperature and concentration as well as the friction factor coefficient, local Nusselt and local Sherwood number is derived and discussed through graphs and tables for both single- and multi-walled carbon nanotubes cases. It is found that the momentum boundary layer thickness of SWCNTs is thicker than MWCNTs. These results can help us to conclude that SWCNTs are helpful for minimizing the friction between the particles, whereas MWCNTs are helpful for boosting the heat and mass transfer rate.