Numerical study of some flow problems in nanofluid
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Date
2017-04
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
In the present study numerical scheme have been employed to analyze the boundary layer flow, heat and mass transfer flow past a nanofluid due to various geometries. The flow around immersed bodies in Newtonian and Non-Newtonian fluid streams are commonly encountered in many studies in medical arena, geophysics, mechanical engineering, hydrodynamics, chemical engineering and ocean engineering etc. The boundary layer flow of nanofluid around bodies of various geometries such as wedge, stretching cylinder, stretching surface, parallel plate and divergent/convergent channel have been discussed. The different flow conditions involve various physical phenomenon such as magnetic effect, velocity slip effect, thermal slip effect, suction/injection, Brownian motion and thermophoresis effects, porosity, buoyancy effect, heat generation/absorption, thermal radiation, chemical reaction, viscous dissipation, Ohmic dissipation and nanoparticle volume fraction etc., have been investigate their impact on profiles of nanofluid for velocity, temperature and concentration. Further, their effects on skin friction coefficient, Nusselt and Sherwood number are studied and discussed in details. The pre requisites of essential concepts have been involved in introduction section. The Lie group transformation and similarity transformation have been employed to altered the fundamental equations into similar dimensionless form and then after Runge-KuttaFehlberg scheme of fourth fifth order together with shooting technique is applied to solve them with the aid of standard MATLAB package. To check the validity of our code we have contrasted our results with those reported in previous literature. This investigation declared that boundary layer flow and heat transfer analysis may be performed in large industrial significance including industrial cooling applications as smart fluids, in nuclear reactors, automotive applications, electronic applications and biomedical applications. The MHD nanofluid flow in electrical conducting fluid can manage the rate of cooling and the required class of products can be obtained. The present study may support in the fields of applied science and also for the researchers working in the field of miniaturized technology, medical science and mechanical engineering etc.
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