Author
K. Ganesh Kumar
Bio: K. Ganesh Kumar is an academic researcher from Kuvempu University. The author has contributed to research in topics: Nanofluid & Heat transfer. The author has an hindex of 24, co-authored 64 publications receiving 1298 citations.
Papers
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TL;DR: In this paper, the authors developed a steady mathematical model for flow and heat transfer of hybrid nanofluid over a stretching sheet, where the amended in the energy equations has been executed by indorsing the viscous dissipation expressions.
96 citations
TL;DR: In this article, the authors explored the discussion on combined effects of Joule heating and viscous dissipation on a three-dimensional flow of Oldroyd B nanofluid.
Abstract: Present study explores the discussion on combined effects of Joule heating and viscous dissipation on a three-dimensional flow of Oldroyd B nanofluid. The model describes that flow is generated by bidirectional stretching sheet with thermophoresis and Brownian motion effects and also energy equation contain radiation term. Converted self similar equations are solved via shooting algorithm with RKF 45 method. The influences of Joule heating and viscous dissipation are discussed through graphs. It is noticed that combination of Joule and viscous heating, the temperature of Oldroyd B nanofluid profile increases.
86 citations
01 Feb 2020-Microsystem Technologies-micro-and Nanosystems-information Storage and Processing Systems
TL;DR: In this paper, the influence of thermal radiation on the flow and heat transfer of single-walled carbon nanotubes over both a convergent and divergent channel was explored.
Abstract: This article explores the influence of thermal radiation on the flow and heat transfer of single-walled carbon nanotubes over both a convergent and divergent channel. Flow is induced due to a Darcy–Forchheimer medium. Further, the heat transfer mechanism is analyzed in the presence of a thermal radiation process. Guided by some appropriate similarity transformations, the fundamental PDEs are converted into a self-similar system of coupled non-linear ODEs. The findings are obtained with the help of the Runge–Kutta-45-based shooting method. The roles of the Reynolds number, porosity parameter, inertia coefficient parameter, Prandtl number and radiation parameter are presented graphically. Results are displayed and show that the rate of heat transfer is higher in a divergent channel as compared to a convergent channel.
78 citations
TL;DR: In this paper, the effect of hybrid nanoparticles on the flow over a rotating disk by using an activation energy model was explored, where molybdenum disulfide and ferro sulfate as nanoparticles suspended in base fluid water were considered.
Abstract: This research work explores the effect of hybrid nanoparticles on the flow over a rotating disk by using an activation energy model. Here, we considered molybdenum disulfide and ferro sulfate as nanoparticles suspended in base fluid water. The magnetic field is pragmatic normal to the hybrid nanofluid flow direction. The derived nonlinear ordinary differential equations are non-dimensionalized and worked out numerically with the help of Maple software by the RKF-45 method. The scientific results for a non-dimensionalized equation are presented for both nanoparticle and hybrid nanoparticle case. Accoutrements of various predominant restrictions on flow and thermal fields are scanned. Computation estimation for friction factor, local Nusselt number and Sherwood number are also executed. Results reveal that the reduction of the heat transfer rate is greater in hybrid nanoparticles when compared to nanoparticles for increasing values of Eckert Number and the thermal field enhances for the enhanced values of volume fraction.
74 citations
TL;DR: In this paper, the effects of physical parameters on velocity, temperature and concentration profiles are investigated and discussed, and the results reveal that the nonlinear radiation is more effective than that of linear radiation.
Abstract: The present study addresses the three-dimensional flow and nonlinear radiative heat transfer of an Oldroyd-B nanofluid flow over a stretching surface with the addition effects of uniform heat source/sink and convective boundary conditions. Suitable similarity transformations are employed to reduce the governing partial differential equations into coupled nonlinear ordinary differential equations. These nonlinear ordinary differential equations are then solved numerically by RKF-45 method. The effects of physical parameters on velocity, temperature and concentration profiles are investigated and discussed. The result reveals that the nonlinear radiation is more effective than that of linear radiation.
70 citations
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
01 Jan 1937
1,390 citations
TL;DR: In this article, the Lattice Boltzmannian method was used to simulate the nanofluid flow in a three dimensional porous cavity under the impact of magnetic field.
203 citations
TL;DR: In this article, the authors employed CVFEM to model alumina nanofluid magnetohydrodynamic flow through a permeable enclosure and showed that Lorentz forces boost the conduction mechanism.
200 citations
TL;DR: In this paper, a water-based nanofluid with CuO nanoparticles heat transfer augmentation inside a porous enclosure is studied, which is simulated by Darcy model.
171 citations