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Neural Computing and Applications

, Volume 30, Issue 3, pp 957–964 | Cite as

A revised model to study the MHD nanofluid flow and heat transfer due to rotating disk: numerical solutions

  • Junaid Ahmad Khan
  • M. Mustafa
  • T. Hayat
  • A. Alsaedi
Original Article

Abstract

Here our main interest is to present numerical simulations for magneto-nanofluid flow and heat transfer near a rotating disk. Buongiorno model, featuring the novel aspects of Brownian motion and thermophoresis, is accounted. Heat dissipation effect is preserved in the energy balance equation. We take into account more realistic wall condition which requires passive control of nanoparticle concentration at the disk. The traditional Von Karman relations have been invoked to attain self-similar differential system. Keller–Box method has been implemented to compute similarity solutions of the problem. Streamlines are prepared in both two and three dimensions for adequate flow visualization. The behavior of involved parameters on the flow fields is examined graphically. It is predicted that the torque required to maintain disk in steady rotation increases when magnetic field effects are enhanced. Fluid flow in the radial, azimuthal and vertical directions is opposed by the magnetic field strength. Thermophoresis effect enhances temperature and reduces heat flux from the disk. However, Brownian diffusion has a marginal influence on temperature distribution. Heat transfer coefficient is reduced due to the inclusion of heat dissipation terms. Present results are consistent with those of the available studies in a limiting situation.

Keywords

Rotating disk Nanoparticle Heat transfer Keller–Box method Brownian motion Magnetic field 

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Copyright information

© The Natural Computing Applications Forum 2016

Authors and Affiliations

  • Junaid Ahmad Khan
    • 1
  • M. Mustafa
    • 2
  • T. Hayat
    • 3
    • 4
  • A. Alsaedi
    • 4
  1. 1.Research Centre for Modeling and Simulation (RCMS)National University of Sciences and Technology (NUST)IslamabadPakistan
  2. 2.School of Natural Sciences (SNS)National University of Sciences and Technology (NUST)IslamabadPakistan
  3. 3.Department of MathematicsQuaid-I-Azam University 45320IslamabadPakistan
  4. 4.Nonlinear Analysis and Applied Mathematics (NAAM) Research GroupKing Abdulaziz UniversityJeddahSaudi Arabia

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