# P. V. Satya NarayanaVIT University | VIT · Division of Fluid Dynamics

P. V. Satya Narayana

Doctor of Philosophy

## About

73

Publications

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1,212

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## Publications

Publications (73)

This study is a study of three‐dimensional couple stress Casson fluid flow with nonlinear thermal radiation and heat source effects. The convective heat and mass transfer analysis is applied to a porous stretching sheet. In fluid flow direction, a uniform magnetic field can be applied. Using the similarity transformations, nondimensional expression...

Significance of the study: Hybrid nanofluids attract the attention of many current researchers due to the enhanced heat transport rate in many engineering and industrial applications. The influence of an inclined magnetic field over an exponentially stretched sheet in the presence of thermal radiation cannot be ignored and the literature available...

Micropolar Fluid Flow Induced due to a Stretching Sheet with Heat Source/Sink and Surface Heat Flux Boundary Condition Effects

This research communication explores the impact of wall slips along with the suspension of nanomaterials in a chemically reactive micropolar liquid stream on a stretched surface with convective heating. Activation of energy is analyzed through the modified Arrhenius function. Radiative heat flux with nonlinearity and temperature‐dependent thermal s...

The present investigation focuses on the influence of motile gyrotactic microorganisms and thermal heat flux on three-dimensional convective flow of a Casson nanoliquid over an elongated surface. The flow equations are modelled by using Tiwari-Das nanofluid model. Sodium alginate (SA) is considered as the base fluid together with Ferromagnetic oxid...

This work explores the heat transfer flow characteristics of an incompressible non-Newtonian Jeffrey fluid over a stretching/shrinking surface with thermal radiation and heat source. The sheet is linearly stretched in the presence of a transverse magnetic field with convective boundary conditions. Appropriate similarity variables are used to transf...

A mathematical model has been established to study the effect of heat source on magnetohydrodynamic 3D chemically reacting couple stress nanofluid flow generated due to the stretching surface. The flow of the fluid in this analysis is controlled by the effects of Brownian motion and thermophoresis force on the temperature and concentration boundary...

The current research work is devoted to study the exploration of dissipation and chemical reaction on MHD radiative Casson nanoliquid thin film flow generated due to the sheet stretching. Brownian motion, viscous dissipation, radiation and chemical reactions are considered, respectively, in energy and concentration equations. The popularly used sim...

This work examines the effects of non-linear thermal radiation and Joule heating on MHD three-dimensional visco-elastic nanofluid flow due to a surface stretching in lateral directions. A coupled nonlinear differential system is generated from the boundary layer equations by using self-similarity variables and is then solved numerically by using mo...

The magneto-hydrodynamics (MHD) fluid flow above a moving melting surface in the existence of sticky intemperance under heat in addition mass transfer characteristics are examined theoretically and to be furnished in this article. The flow equivalent equations are solved by means of R-K method of 4th order. The impact of notable parameters on veloc...

The resent development of research in the field of nano technology introduced hybrid nanofluids which are advanced classes of fluids with augmented thermal properties and it gives better results comparing to regular nanofluid. The aim of the present work is to study the significant effects of variable viscosity and viscous dissipation on a porous s...

The current study explores the effects of second‐order slip and activation energy (AE) on the magnetohydrodynamic and radiative fluid flow caused by a surface with exponential stretching. The binary chemical reaction with mixed convection is considered in this physical model to discover the heat transfer phenomenon. The governing system of equation...

Little is known on the three-dimensional flow of couple stress Casson fluid conveying nanoparticles when the significance of Lorentz force, chaotic gesture of those minute particles and thermophoresis are significant. The intent of this investigation is to focus on the flow of such fluid along a horizontal surface due to dual stretching and interna...

The augmentation of heat and mass transfer in an industrial process due to convective boundary conditions plays an important role which cannot be ignored and the study lead to saving energy, reducing process time and increasing thermal rating. The impact of nonlinear thermal radiation on Eyring-Powell nanofluid flow over a nonlinear elongating shee...

The influence of variable surface temperature and concentration on MHD stagnation point flow towards a stretching sheet plays an important role in wire coating, film blowing, fiber spinning and coating. In this work an attempt has been made to study the ramification of thermal radiation on MHD chemically reacting liquid past a stretching surface wi...

The enhancement of heat transfer in a new kind of hybrid nanofluid is more than that of a single nanoparticle. Also, the thermal conductivity of diamond, silver and gold is more than that of copper, titanium oxide and alumina. Hence, an attempt is made to study the influence of hybrid nanoparticles (diamond and silica) with ethylene glycol as a bas...

The importance of thermophoresis and its essential role in particle migration have led to many published reports (i.e. aim and objectives). However, there exists no report on thermo-migration of tiny/nano-sized particles in the motion of various fluids. A meta-analysis on the significance of either nano or tiny particles exposed to thermophoretic f...

In this study, the impact of thermal radiation and partial slip on magnetohy-drodynamic flow of Jeffrey nanofluid comprising motile gyrotactic microorganisms via vertical stretching surface is analysed. The governing partial differential equations are reformed to a system of coupled ordinary differential equations by utilizing the similarity transf...

The present investigation deals with the steady three-dimensional flow and heat transfer of nanofluids due to stretching sheet in the presence of magnetic field and heat source. Three types of water based nanoparticles namely, copper (Cu), aluminium oxide (Al2O3), and titanium dioxide (TiO2) are considered in this study. The temperature dependent v...

In this report, the effects of homogeneous-heterogeneous autocatalytic chemical reaction together with the variable thermal conductivity in the Maxwell fluid flow due to nonlinear surface of variable thickness are investigated. Thermal radiation and heat generation / absorption effects are also incorporated in the analysis. Appropriate scaling anal...

During the homogeneous-heterogeneous autocatalytic chemical reaction in the dynamics of micropolar fluid, relaxation of heat transfer is inevitable; hence Cattaneo-Christov heat flux model is investigated in this report. In this study, radiative heat flux through an optically thick medium is treated as nonlinear due to the fact that thermal radiati...

The impact of heat source on magnetohydrodynamic oscillatory flow of a chemically reacting viscoelastic fluid in an asymmetric wavy channel is analysed. The governing flow equations are transformed into ODEs by utilizing proper non-dimensional variables. The subsequent ordinary differential equations are solved analytically. The effects of differen...

The present work is committed to study the influence of dissipation and Joule heating on the magnetohydrodynamic squeezing flow between two Riga plates with Cattaneo–Christov heat flux. Riga plate is known as an electromagnetic actuator which comprises of permanent magnets and alternating electrodes placed on a plane surface. A non-Fourier (Cattane...

In the present work, dynamical aspects of boundary layer flow of hydromagnetic fluid (suspended with microorganisms) are investigated near the stagnation region over a stretchable heated permeable sheet. Viscosity is taken as a linear function of temperature where the flow field accommodates diffusion processes due to temperature and concentration...

The present paper deals with the influence of chemical reaction and velocity slip over a porous vertical plate in the presence of variable wall concentration. A constant magnetic field of strength B0 is applied normal to the fluid flow direction and the fluid is assumed to be water based alumina-nanofluid. Using similarity transformations the gover...

The numerical analysis of 3D magnetohydrodynamic Darcy-Forchheimer nanofluid flow with nonlinear thermal radiation is explored. Utilizing suitable similarity transformations, the governing PDEs are transformed into nonlinear ODEs. The resulting equations are then solved numerically by the most robust shooting technique with RK method of fourth orde...

This article addresses the impact of radiation and Joule heating on MHD viscoelastic nanofluid flow over a stretching sheet in the presence of heat source. The novelty of the present investigation is to build up a model for nanomaterial involving Brownian motion and thermophoresis with convective boundary conditions. Using Similarity factors the go...

The steady two-dimensional MHD flow of a Jeffery nanofluid over a stretching sheet in the presence of thermal radiation and heat source has been examined numerically. The Brownian motion and thermophoresis effects have been fused in the nanofluid. Applying similarity transformations, the governing partial differential equations are reduced into a s...

In this paper we discuss the MHD unsteady flow of a micropolar nanofluid through a vertical channel with expanding/contracting walls under the influence of nonlinear thermal radiation considering weak permeability. The PDEs of the governing problem are reduced into a set of ODEs by using self-similar transformations and are then solved numerically....

A mathematical model is established to examine the influence of viscous dissipation and joule heating on magnetohydrodynamic (MHD) flow of an incompressible viscoelastic nanofluid over a convectively heated stretching sheet. Brownian motion and thermophoresis effects have been introduced in this nanofluid model. The governing equations are transfor...

The effects of viscous dissipation and heat source on MHD flow and heat transfer from a warm, electrically conducting fluid to melting surface parallel to a constant free stream are investigated numerically. This model constitutes highly non-linear governing equations which are transformed using similarity variables and are then solved by fourth or...

In the present paper, a numerical analysis is performed to study the primary and secondary flows of a micropolar fluid flow past an inclined plate with viscous dissipation and thermal radiation in a rotating frame. A uniform magnetic field of strength Bo is applied normal to the plane of the plate. The whole system rotates with uniform angular velo...

The mathematical analysis of 2D magnetohydrodynamic Jeffrey fluid flow over a permeable stretching surface in the presence of viscous dissipation and heat source/sink is made in this article. Using appropriate similarity transfor- mations, the set of governing partial differential equations is transformed into a set of coupled nonlinear ordinary di...

The present study considers the effect unsteady MHD free convective flow of a viscoelastic incompressible electrically conducting fluid past a moving vertical plate through a porous medium with time dependent oscillatory permeability and suction in presence of a uniform transverse magnetic field and heat source and chemical reaction along with heat...

This paper deals with the MHD oscillatory flow of an incompressible and electrically conducting visco-elastic fluid in a vertical channel in the presence of chemical reaction and heat source. The unsteadiness in the flow is due to an oscillatory pressure gradient across the ends of the channel. A closed form solutions for velocity, temperature and...

This paper focuses on the heat transfer characteristics of a nanofluid flow over a stretching sheet. The sheet is linearly stretched with transverse magnetic field, thermal radiation, and viscous dissipation. Using appropriate group transformations, the basic governing equations are transformed into a system of non-linear differential equations. Th...

This study investigates the mass transfer flow of Powell-Eyring fluid due to the porous stretching sheet with magnetic field. A second-order approximation of the Eyring-Powell fluid model is used to obtain the flow equations. Using usual similarity transformations, the governing equations have been transformed into non-linear ordinary differential...

The unsteady magnetohydrodynamic (MHD) mass transfer flow of an incompressible, electrically conducting nanofluid past a porous stretching sheet has been considered. In this study we considered three different types of water based nanofluids viz., copper (Cu), aluminum oxide Al2O3, and titanium dioxide (TiO2). By using appropriate similarity transf...

This paper deals with the effects of thermal radiation on unsteady MHD nanofluid flow past a stretching sheet with non-uniform heat source/sink. The flow and heat transfer characteristics are analysed for aluminum oxide (Al2O3) and titanium dioxide (TiO2) nanoparticles with water as a base fluid. The governing time-dependent partial differential eq...

An analysis has been carried out to study the mixed convection flow, heat and mass transfer of an incompressible electrically conducting Maxwell fluid past a vertical stretching sheet in the presence of chemical reaction with thermal diffusion (Soret) and diffusion-thermo (Dufour) effects. The governing nonlinear partial differential equations alon...

The present work is devoted to study the numerical simulation of steady magnetohydrodynamic flow and heat transfer of an Eyring-Powell fluid over a stretching sheet with viscous dissipation. The fluid is taken to be two dimensional electrically conducting and the flow is induced by a stretching surface. The basic governing partial differential equa...

This paper studies the combined effects of Soret (thermal-diffusion) and Dufour (diffusion-thermo) on magnetohydrodynamics (MHD) boundary layer flow of a Jeffrey fluid past a stretching surface with chemical reaction and heat source. Using the similarity transformations, the governing equations are transformed into a set of non-linear ordinary diff...

The present study explores the free convective oblique Casson fluid over a stretching surface with non-linear thermal radiation effects. The governing physical problem is modelled and transformed into a set of coupled non-linear ordinary differential equations by suitable similarity transformation, which are solved numerically with the help of shoo...

The present study is an overview of magnetohydrodynamic flow of heat and mass transfer characteristics of Newtonian/ non-Newtonian fluid flow over a porous stretching surface with radiation effects. On the basis of previous studies the researchers have identified that there is a wider scope for further analysis and lots of research work is to be ca...

This paper studies the Soret and Dufour effects on MHD flow of a Casson fluid past a stretching sheet in the presence of chemical reaction, viscous dissipation and variable thermal conductivity. The fluid is taken to be electrically conducting and the flow is induced by a stretching surface. The governing partial differential equations are transfor...

In this paper, we study the chemical reaction and heat source effects on unsteady MHD free convection heat and mass transfer of a nanofluid flow past a semi-infinite flat plate in a rotating system. The plate is assumed to oscillate in time with steady frequency so that the solutions of the boundary layer are the similar oscillatory type. The innov...

An analysis has been carried out to study the effects of radiation absorption and first-order chemical reaction on unsteady mixed convective flow of a viscous incompressible electrically conducting fluid through a porous medium of variable permeability between two long vertical non conducting wavy channels in the presence of heat generation. The un...

This paper investigates the effect of heat and mass transfer on MHD oscillatory flow in an asymmetric wavy channel with chemical reaction and heat source. The unsteadiness in the flow is due to an oscillatory pressure gradient across the ends of the channel. A magnetic field of uniform strength is applied in the direction perpendicular to the chann...

A numerical model is developed to study the effects of chemical reaction and heat source on MHD heat and mass transfer of an electrically conducting Jeffrey fluid over a stretching sheet in the presence of power law form of temperature and concentration. Similarity transformations are used to convert the governing partial differential equations to...

An analysis has been developed to study the convective heat and mass transfer of a visco-elastic fluid flow over a continuously moving vertical surface with uniform suction in the presence of chemical reaction and heat generation. The flow is subjected to a transverse uniform magnetic field. The governing equations for this investigation are solved...

This article studies the effect of thermal radiation on a MHD free convection flow of a nanofluid bounded by a semi-infinite vertical plate with a constant heat source in a rotating frame of reference. The plate is assumed to oscillate in time with constant frequency so that the solutions of the boundary layer are the same oscillatory type. The dim...

The aim of this paper
is to study the effects of radiation absorption and chemical reaction on MHD free convection heat transfer flow of a nanofluid bounded by a semi-infinite flat plate in a rotating frame of reference. The plate is assumed to oscillate in time with steady frequency so that the solutions of the boundary layer are the similar oscil...

The objective of this paper is to study the effects of Hall current and radiation absorption on MHD free convection mass transfer flow of a micropolar fluid in a rotating frame of reference. A uniform magnetic field acts perpendicular to the porous surface in which absorbs micropolar fluid with a constant suction velocity. The entire system rotates...

An analysis of unsteady free convection with heat and mass transfer flow for a micropolar fluid through a porous medium with a variable permeability bounded by a semi-infinite vertical plate in the presence of heat generation, thermal radiation, first-order chemical reaction, and the radiation absorption is reported. The plate is assumed to move wi...

This paper deals with a steady MHD forced convective flow of a viscous fluid of finite depth in a saturated porous medium over a fixed horizontal channel with thermally insulated and impermeable bottom wall in the presence of viscous dissipation and joule heating. The governing equations are solved in the closed form and the exact solutions are obt...

Heat and mass transfer along a vertical porous plate under the combined buoyancy force effects of thermal and species diffusion is investigated in the presence of a transversely applied uniform magnetic field and the Hall currents are taken into account. The governing fundamental equations on the assumption of a small magnetic Reynolds number are a...

We investigate MHD peristaltic flow of an incompressible viscous fluid in an inclined asymmetric channel under long wavelength and low Reynolds number assumptions. The expressions for velocity distribution and the pressure rise are obtained. The effects of phase shift and Hartmann number on the pumping characteristics are discussed.

The objective of this paper is to analyze the radiation and mass transfer effects on an unsteady two-dimensional laminar mixed convective boundary layer flow of a viscous, incompressible, electrically conducting chemically reacting fluid, along a vertical moving semi-infinite permeable plate with suction, embedded in a uniform porous medium, in the...