Dhivya Mohanavel
@chennai.vit.ac.in
Assistant Professor, Division of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Chennai.
VIT Chennai
EDUCATION
Ph.D from Anna University, Chennai
RESEARCH, TEACHING, or OTHER INTERESTS
Mathematical Physics, Computational Mathematics, Computational Theory and Mathematics, Fluid Flow and Transfer Processes
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Rajakumari Rammoorthi and Dhivya Mohanavel
AIP Publishing
The primary aim of this study is to examine the effect of squeezing hybrid nanofluids copper and magnetite with water flow across a horizontal surface under the impact of magnetic and radiative effects, which has extensive applications in the field of biomedical engineering and nanotechnology. Additionally, a microcantilever sensor is placed between the horizontal surfaces to surveil the flow behaviors. The equations pertaining to momentum and energy are reconstructed into a set of ordinary differential equations (ODEs). These ODEs are subsequently solved through a numerical approach, wherein the bvp4c solver from MATLAB is utilized. This solver employs a collocation technique for the numerical solution. As a result, the solutions acquired for velocity and temperature are graphically displayed for different parameters, including volume fraction of nanoparticles, squeezing flow index parameter (b), magnetic parameter (M), permeable velocity parameter (f0), radiation parameter R, and Prandtl number (Pr). It has been observed that increasing the magnetic effect as well as the volume fraction of nanoparticles strengthens the flow effect. In contrast, increasing the squeezing and permeable velocity parameter impedes the flow. When there is an increase in a permeable velocity parameter, the temperature shoots up, and the cooling effect is spotted in the temperature profile, when the Prandtl number and magnetic and squeezing parameters are raised. This investigation upholds the significance of drag reduction, flow instabilities, fluid structure interactions, and heat transfer effectiveness by virtue of wall shear stress, squeezing flow index parameter, various hybrid nanofluids, and Nusselt number, respectively. A considerable comparative study has been made for the validation of current results.
Rajakumari Rammoorthi and Dhivya Mohanavel
Akademia Baru Publishing
This study pitch into the three different types of hybrids nanofluids flow across a semi-infinite moving vertical plate exposed to the radiative magnetic field and are also implanted in a porous medium. The governing equations corresponding to the problem is a linear partial differential equation which are simplified by appropriate non-dimensional quantities and solved using Laplace transform technique. Exact general solutions for the dimensionless velocity and temperature, concentration fields as well as the accompanying skin friction, Nusselt number and Sherwood number are graphically derived. Increase in the parameters like permeability, Grashof number for heat and mass elevates the hybrid nanofluids velocity profile. When the magnetic parameter increases there is a retardation in the flow speed. Heat transfer rate slows down when the radiation increase. It reveals that Prandtl number lowers thermal boundary layer thickness. Intensification of chemical reaction lowering the concentration. Elevation of Schmidt number, accelerates the mass transfer. This study, also have a keen interest in determining which type of hybrid nanofluid provides the greatest enhancement in velocity and temperature.
Dhivya M and Vajravelu K
Informa UK Limited
A theoretical framework pertaining to the study of boundary layer flow of a Williamson fluid over a moving vertical cylinder with variable porosity has been discussed. The significance of this analysis is to investigate the heat transfer enhancement for a shear thinning flow over a cylinder entrenched in a variable permeability of the porous medium. Prandtl boundary layer equations with appropriate conditions are solved numerically through the utility of a Crank Nicholson method. The impressions of the various morphological and rheological characteristics involving parameters like variable porosity parameter, Williamson parameter, Nusselt number and Sherwood number have been scrutinized and presented graphically. Low-velocity profile develops for the variable porosity parameter with high intensity. It has been discerned that the ferocity of heat and mass transfer rates is high, when there is less variation supervenes in the shear-thinning fluids. Moreover, the velocity boundary layer will override the thermal boundary layer for a substantial increase in the Prandtl number. Further, the validation of the results was verified through an extensive comparative study with the available results in the literature.
Dhivya M, Loganathan P, and Vajravelu K
Elsevier BV
Loganathan Parasuraman and Dhivya Mohanavel
Springer Science and Business Media LLC
Parasuraman Loganathan and M. Dhivya
Begell House
Loganathan Parasuraman and Dhivya Mohanavel
Wiley
AbstractThis study numerically scrutinizes the boundary layer flow of an electrically conducting and viscous dissipative fluid past an impulsively started permeable vertical cylinder together with thermal radiation. The solutions of the governing problem are accomplished using the Crank‐Nicholson scheme. The impressions of pertinent parameters on the flow patterns of the fluid particles as well as on the velocity, temperature, and distributed regions are captured and visualized three‐dimensionally.