Niranjan Hari

Dr. Niranjan Hari

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
6 February 2017 in International Journal of Numerical Methods for Heat & Fluid Flow
Verified
Journal Article
Closed access
Sivasankaran SivanandamSivasankaran Sivanandam
Sivasankaran Sivanandam
NHNiranjan Hari
Niranjan Hari
BMBhuvaneswari Marimuthu
Bhuvaneswari Marimuthu
Purpose: The purpose of this paper is to investigate the Newtonian heating and slip effect on mixed convective flow near a stagnation point in a porous medium with thermal radiation in the presence of magnetohydrodynamic (MHD), heat generation/absorption and chemical reaction. Design/methodology/approach: The governing nonlinear coupled equations are converted into ordinary differential equations by similarity transformation. These equations are solved numerically using a Runge–Kutta–Fehlberg method with shooting technique and analytically using the homotopy analysis method (HAM). Findings: The effects of different parameters on the fluid flow and heat transfer are investigated. It is found that the velocity and temperature profiles increase on an increase in the Biot number. The velocity and concentration profiles increase on decreasing the chemical reaction parameter. Practical implications: This paper is helpful to the engineers and scientists in the field of thermal and manufacturing engineering. Originality/value: The two-dimensional boundary layer flow over a vertical plate with slip and convective boundary conditions near the stagnation-point is analysed in the presence of magnetic field, radiation and heat generation/absorption. This paper is helpful to the engineers and scientists in the field of thermal and manufacturing engineering.

22 January 2023 in Symmetry
Verified
Journal Article
Open access
PDF file
SJSenthil Jayanthi
Senthil Jayanthi
NHNiranjan Hari
Niranjan Hari
This study investigates magnetohydrodynamic (MHD) nanofluid flow through a stretching vertical surface influenced by Joule heating, chemical reaction, viscosity dissipation, thermal radiation, and activation energy. Such physical problems have significance in applied mathematics, engineering, and physics, and they are frequently found in symmetrical scenarios. A transformation of the similarity technique is used to reduce the difficulty of the boundary layer equations for nonlinear motion, energy, solute, and nanoparticle concentration. To identify these variations with local similarity, we employ symmetry analysis. The altered equations were solved using the shooting technique with Matlab bvp4c. It was found that raising the Schmidt number increases the impact of temperature and concentration profiles. As the Biot number and thermal radiation rise, the local Nusselt number, local Sherwood number, and skin friction increase as well. The comparative table shows good agreement with the current results.

19 August 2024 in Journal of Thermal Analysis and Calorimetry
Verified
Journal Article
Closed access
PDF file
ARAlugunuri Raghu
Alugunuri Raghu
NGNagaraju Gajjela
Nagaraju Gajjela
JAJ. Aruna
J. Aruna
NHNiranjan Hari
Niranjan Hari

26 April 2016 in Mathematical Problems in Engineering
Verified
Journal Article
Open access
PDF file
NHNiranjan Hari
Niranjan Hari
Sivasankaran SivanandamSivasankaran Sivanandam
Sivasankaran Sivanandam
BMBhuvaneswari Marimuthu
Bhuvaneswari Marimuthu
We investigate the effects of slip and radiation on magnetoconvection flow of a chemically reacting fluid near a stagnation-point towards a vertical plate embedded in a porous medium analytically and numerically. The governing partial differential equations are diminished into the coupled ordinary differential equations by similarity transformations. Then they are solved analytically by homotopy analysis method and solved numerically by shooting method with RK fourth-order method. In this study, the analytical and numerical results are compared for many combinations of parameters. The rates of heat and mass transfer are calculated. The velocity profile near the plate overshoots on increasing the slip parameter. The concentration and temperature are decreasing on increasing the slip parameter.

31 December 2018 in Journal of Physics: Conference Series
Verified
Conference Paper
Open access
PDF file
DKD Satish Kumar
D Satish Kumar
SAS Anusha
S Anusha
DRD S Rao
D S Rao
NHNiranjan Hari
Niranjan Hari
Today the corporate retail stores are the focal points for purchasing decisions of middle and high-income groups in urban India. However, each corporate retail store has its own method of retailing. Storing the products differently at same locality, location advantage, self-servicing outlets, windows hopping, large scale discount, specialty stores are some of the models retailing stores have adopted. But only some of the models are only popular among the consumers. Consumer's preferences and choices are varying across different retail models. In this context the present study wants to explore significant difference among corporate retail stores in Vijayawada in consumer preference and choices

25 February 2025 in Case Studies in Thermal Engineering
Verified
Journal Article
Open access
NGNagaraju Gajjela
Nagaraju Gajjela
Arun Seeralan BalakrishnanArun Seeralan Balakrishnan
Arun Seeralan Balakrishnan
MGMahesh Garvandha
Mahesh Garvandha
NHNiranjan Hari
Niranjan Hari
ARAdigoppula Raju
Adigoppula Raju
SSSivakumar S
Sivakumar S