Abstract
This investigation describes the hydromagnetic flow of gravity-driven couple stress hybrid nanofluid past a heated plate. The carbon nanotubes (CNTs) are used to characterize the hybrid nanofluid. The heated plate is placed vertically with an application of homogenous-heterogeneous reactions to the assumed flow system. The homogeneous reaction governs by isothermal cubic autocatalytic kinetics while the heterogeneous reaction governs by the first order kinetics. For current study the couple stress hybrid nanofluid is presumed to be conducted electrically with impact of non-uniform magnetic effects. An appropriate set of dimensionless quantities has employed to governing equations and then has solved by homotopy analysis method. The influence of emerging parameters encountered in this work has discussed in detail with the help of graphs. In this study it has examined that, flow of fluid reduces with upsurge in magnetic parameter and volumetric concentrations, whereas thermal and concentration characteristics augment with increase in volumetric concentrations. Moreover, growth in Prandtl number leads to a reduction in thermal characteristics and growth in Schmidt number result a reduction in concentration profile. The impact of various emerging parameters has also studied numerically upon physical quantities. It has established that, with augmentation in values of buoyancy parameter there is a growth in the values of skin friction. A comparison has also carried out between current and established results with a fine agreement in both results.
Highlights
This investigation describes the hydromagnetic flow of gravity-driven couple stress hybrid nanofluid past a heated plate
The flow system is assumed under the influence of homogenous and heterogeneous reactions where the former reaction is governed by autocatalytic kinetics while the later one is governed by first order kinetics
An appropriate set of dimensionless variables has employed to governing equations in order to achieve a set of dimensionless ODEs and its solution has carried out by HAM
Summary
This investigation describes the hydromagnetic flow of gravity-driven couple stress hybrid nanofluid past a heated plate. For current study the couple stress hybrid nanofluid is presumed to be conducted electrically with impact of non-uniform magnetic effects. The basic idea in the rear of MHD is that the electric current is induced by magnetic effects through a conductive moving fluid This type of fluid has numerous applications at industrial level such as reactor cooling, drug targeting etc. Eid et al.[14] discussed three dimensional Prandtl nanofluid flow with chemical reaction through some permeable materials In this investigation the Brownian and thermophoresis effects have considered to see the enhancement of heat transfer characteristics of the flow system. The MHD flow of hybrid nanofluid is examined above a vertically placed heated plate. For current study the couple stress hybrid nanofluid is presumed to be conducted electrically with application of non-uniform magnetic field to flow problem.
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