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Content available An unsteady flow and melting heat transfer of a nanofluid over a stretching sheet embedded in a porous medium
Kumar K. G., Gireesha B. J., Rudraswamy N. G., Krishnamurthy M. R.
International Journal of Applied Mechanics and Engineering
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2019
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Vol. 24, no. 2
245--258
EN
An unsteady flow and melting heat transfer of a nanofluid over a stretching sheet was numerically studied by considering the effect of chemical reaction and thermal radiation. The governing non-linear partial differential equations describing the flow problem are reduced to a system of non-linear ordinary differential equations using the similarity transformations and solved numerically using the Runge–Kutta–Fehlberg fourth–fifth order method. Numerical results for concentration, temperature and velocity profiles are shown graphically and discussed for different physical parameters. Effect of pertinent parameters on momentum, temperature and concentration profiles along with local Sherwood number, local skin-friction coefficient and local Nusselt number are well tabulated and discussed.
2
Content available Scrutinization of Joule heating and viscous dissipation on MHD flow and melting heat transfer over a stretching sheet
Kumar K. G., Gireesha B. J., Manjunatha S.
International Journal of Applied Mechanics and Engineering
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2018
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Vol. 23, no. 2
429--443
EN
The present paper deals with an analysis of the combined effect of Joule heating and viscous dissipation on an MHD boundary layer flow and melting heat transfer of a micro polar fluid over a stretching surface. Governing equations of the problem are transformed into a set of coupled nonlinear ordinary differential equations by applying proper transformations and then they are solved numerically using the RKF-45 method. The method is verified by a comparison with the established results with limiting solution. The influence of the various interesting parameters on the flow and heat transfer is analyzed in detail through plotted graphs.
3
Content available Thermal analysis of generalized Burgers nanofluid over a stretching sheet with nonlinear radiation and non uniform heat source/sink
Kumar K. G., Ramesh G. K., Gireesha B. J.
Archives of Thermodynamics
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2018
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Vol. 39, no 2
97--122
EN
The work deals with the heat analysis of generalized Burgers nanofluid over a stretching sheet. The Rosseland approximation is used to model the non-linear thermal radiation and incorporated non-uniform heat source/sink effect. The governing equations reduced to a set of nonlinear ordinary differential equations under considering the suitable similarity transformations. The obtained ordinary differential equations equations are solved numerically by Runge-Kutta-Fehlberg order method. The effect of important parameters on velocity, temperature and concentration distributions are analyzed and discussed through the graphs. It reveals that temperature increases with the increase of radiation and heat source/sink parameter.
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