Journal ArticleDOI
Numerical Simulation of Entropy Generation on MHD Nanofluid Towards a Stagnation Point Flow Over a Stretching Surface
TLDR
In this paper, the entropy generation on MHD nanofluid towards a stagnation point flow over a permeable stretching surface has been investigated numerically, and the resulting highly nonlinear coupled differential equations are solved with the help of successive linearization method and Chebyshev spectral collocation method.Abstract:
In this article, entropy generation on MHD nanofluid towards a stagnation point flow over a permeable stretching surface has been investigated numerically. The governing equations of nanofluid are simplified using similarity variables with the help of momentum, energy and concentration equations. The resulting highly nonlinear coupled differential equations are solved with the help of successive linearization method and Chebyshev spectral collocation method. The impact of all the pertinent parameters such as Hartmann number, suction/injection parameter, heat source/sink parameter, Lewis number, Prandtl number, Brownian motion parameter, thermophoresis parameter are demonstrated graphically. Furthermore, the effect of Brinkman number and Reynolds number are also presented for entropy generation. It is analyzed that the velocity of the fluid increases due to greater influence of magnetic field and porosity parameter. Moreover, it is also observed that the entropy generation number increase due to the increment in Brinkman number and Reynolds number. Numerical comparison is also given with the existing published literature and found that the present results are in good agreement.read more
Citations
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Journal ArticleDOI
Lattice Boltzmann method simulation for MHD non-Darcy nanofluid free convection
TL;DR: In this paper, the Lattice Boltzmannian method is selected as mesoscopic approach for convective flow in cubic porous enclosure and the Brownian motion impact is taken into account via KKL model.
Journal ArticleDOI
Magnetic field influence on CuO–H2O nanofluid convective flow in a permeable cavity considering various shapes for nanoparticles
TL;DR: In this article, the shape effect of nanoparticles and Brownian motion impact on nanofluid properties are taken into consideration and the solutions of final equations are obtained by CVFEM.
Journal ArticleDOI
Entropy generation minimization (EGM) of nanofluid flow by a thin moving needle with nonlinear thermal radiation
TL;DR: In this paper, the entropy expression is derived as a function of temperature and velocity gradients, and the results of temperature, velocity, concentration, surface drag force and heat transfer rate are explored.
Journal ArticleDOI
Numerical analysis of natural convection of Cu–water nanofluid filling triangular cavity with semicircular bottom wall
TL;DR: In this paper, the free convection of copper-water-based nanofluid filling a triangular cavity with semicircular bottom wall was analyzed by inspecting the impacts of Rayleigh number, Hartman number, aspect ratio and the volume fraction of the Cu nanoparticles.
Journal ArticleDOI
Magnetohydrodynamic Nanofluid Natural Convection in a Cavity under Thermal Radiation and Shape Factor of Nanoparticles Impacts: A Numerical Study Using CVFEM
TL;DR: In this paper, the shape factor of nanoparticles was analyzed numerically using the control volume-based finite element method (CVFEM) to study the natural convection of a magnetohydrodynamic nanofluid in an enclosure under the effects of thermal radiation and shape factor.
References
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Thermal radiation heat transfer
Robert Siegel,John R. Howell +1 more
TL;DR: In this article, a comprehensive discussion of heat transfer by thermal radiation is presented, including the radiative behavior of materials, radiation between surfaces, and gas radiation, and the use of the Monte Carlo technique in solving radiant exchange problems and problems of radiative transfer through absorbing-emitting media.
Book
Thermal Radiation Heat Transfer
Robert Siegel,John R. Howell +1 more
TL;DR: In this paper, a comprehensive discussion of heat transfer by thermal radiation is presented, including the radiative behavior of materials, radiation between surfaces, and gas radiation, and the use of the Monte Carlo technique in solving radiant exchange problems and problems of radiative transfer through absorbing-emitting media.
Book
Radiative heat transfer
TL;DR: In this article, the Monte Carlo method for thermal radiation was used to estimate the radiative properties of one-dimensional Gray Media, and the method of Spherical Harmonics (PN-Approximation) was used for the same purpose.
Journal ArticleDOI
Effect of thermal radiation on magnetohydrodynamics nanofluid flow and heat transfer by means of two phase model
TL;DR: In this paper, the effect of thermal radiation on magnetohydrodynamics nanofluid flow between two horizontal rotating plates is studied and the significant effects of Brownian motion and thermophoresis have been included in the model of Nanofluide.