Shalini Jain

Bio: Shalini Jain is an academic researcher from Manipal University Jaipur. The author has contributed to research in topics: Boundary layer & Heat transfer. The author has an hindex of 7, co-authored 29 publications receiving 118 citations. Previous affiliations of Shalini Jain include University of Rajasthan.

Radiation Effect on MHD Williamson Fluid Flow over Stretching Cylinder Through Porous Medium with Heat Source

Abstract: In this present paper, we have investigated radiation effects on MHD Williamson fluid flow past a stretching cylinder through porous medium. MHD with Hall and ion-slip currents impact is taken into consideration. The governing PDEs are transformed into BVPs by using appropriate transformations. Shooting technique with Runge–Kutta forth-order method is used to find the solution of the problem. The effect of various parameters such as curvature parameter \(\gamma\), heat generation parameter \(\beta\), Hall current parameter \(\beta_{e}\), ion-slip parameter \(\beta_{i}\) magnetic parameter M, thermal conductivity \(\varepsilon\), Weissenberg number \(\lambda\), Eckert number Ec, radiation parameter K and Prandtl number Pr on momentum and thermal energy profiles are discussed and displayed graphically. Local Nusselt number and skin friction coefficient are tabulated.

Multiple slip effects on inclined MHD Casson fluid flow over a permeable stretching surface and a melting surface

Abstract: Received: 10 August 2017 Accepted: 14 May 2018 In this paper, we have investigated the effects of multiple slip on inclined MHD Casson fluid flow over a permeable stretching surface and a melting surface. We have considered first and second order velocity slip, non-linear radiation, non-uniform heat source and non-linear chemical reaction. The analysis is carried out numerically for the momentum, heat and mass equations by solving the bvp4c MATLAB solver. The physical features of non-dimensional Casson fluid parameter, Schmidt number, Eckert number, variable radiation parameter, porosity parameter, variable heat source parameter, Prandtl number, Skin friction coefficient, local Nusselt number and local Sherwood number of velocity, temperature, volume fraction have been discussed and depicted by the graphs and tables. The  and  profiles were uplifted

Heat and mass transfer over a three-dimensional inclined non-linear stretching sheet with convective boundary conditions

Abstract: This investigation has been made to study of heat and mass on three-dimensional boundary layer flow of an incompressible fluid due to inclined non-linear stretching sheet with convective boundary conditions The effect of thermophoresis and chemical reaction has been taken into account Numerical solution has been obtained for the set of non-linear coupled ordinary equations which are reduced by using similarity transformations from non-linear partial differential equations Transforms system of equations has been solved using Runge–Kutta–Fehlberg fourth–fifth order method along with shooting technique Effects of various parameters on velocity, temperature and concentration profiles have been obtained These results have been presented through graphs and also our analysis explores the physical quantities of interest through the tables

Cattaneo–Christov heat flux model for stagnation point flow of micropolar nanofluid toward a nonlinear stretching surface with slip effects

Abstract: Cattaneo–Christov with variable thermal relaxation time and entropy generation is the main concern of this study. The micropolar fluid with absorption of heat in the existence of mixed convection and partial slip is scrutinized. Two distinct nanoparticles, i.e., single-wall carbon nanotube and multi-wall carbon nanotube, are immerged in micropolar fluid to interrogate the feature of heat and mass transfer. The non-dimensional similarity transformation is utilized to transform the partial differential equations into nonlinear ordinary differential equations, and resulting coupled equations are solved numerically using bvp4c from MATLAB. The present results show the fabulous agreement with previous published results. The temperature field diminishes with larger thermal relaxation time parameter. Entropy generation profile is an increasing function of Brinkmann number, while Bejan number is a diminishing function. Further the solid volume fraction diminishes the velocity profile and enhances the temperature distribution and entropy generation.

Nonlinear thermal radiation and entropy generation on steady flow of magneto-micropolar fluid passing a stretchable sheet with variable properties

Abstract: Various industrial and engineering operations are accompanied with the phenomena of heating and cooling and in such situations, the construction of relevant thermal devices for use in energy and electronic devices is crucial. For efficient performance of such devices, entropy generation should be reduced in the processes. Hence, this study focuses on the impact of nonlinear thermal radiation with entropy production on the steady flow of magneto-micropolar fluid. The flow is generated by a nonlinear stretchable sheet with the influence of variable fluid properties and convective surface heating condition. The controlling mathematical equations are transmuted from partial to ordinary differential equations by similarity conversion procedures and then numerically integrated using shooting techniques accompanied by Runge-Kutta scheme. The graphs of the main physical quantities affecting the velocity, temperature, entropy generation and Bejan number are displayed and discussed. The comparison of the results revealed good relationship with existing ones in literature in the limiting conditions for special cases. From the analysis, it is found that the growth in the magnitude of Prandtl and Eckert numbers enhance entropy generation while the dominance of viscous and Ohmic heating irreversibility over heat transfer irreversibility is observed with a rise in both parameters due to a decline in Bejan number.

Entropy analysis of unsteady magneto-nanofluid flow past accelerating stretching sheet with convective boundary condition

Abstract: The unsteady laminar magnetohydrodynamics (MHD) boundary layer flow and heat transfer of nanofluids over an accelerating convectively heated stretching sheet are numerically studied in the presence of a transverse magnetic field with heat source/sink. The unsteady governing equations are solved by a shooting method with the Runge-Kutta-Fehlberg scheme. Three different types of water based nanofluids, containing copper, aluminium oxide, and titanium dioxide, are taken into consideration. The effects of the pertinent parameters on the fluid velocity, the temperature, the entropy generation number, the Bejan number, the shear stress, and the heat transfer rate at the sheet surface are graphically and quantitatively discussed in detail. A comparison of the entropy generation due to the heat transfer and the fluid friction is made with the help of the Bejan number. It is observed that the presence of the metallic nanoparticles creates more entropy in the nanofluid flow than in the regular fluid flow.