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![Table 4 . Comparison of Nu av to that of Khanafer et al. [40].](profile/Anwar-Joarder/publication/316915688/figure/tbl1/AS:670373511188480@1536840908017/Comparison-of-Nu-av-to-that-of-Khanafer-et-al-40_Q320.jpg)
2016): Unsteady analysis of natural convection in a carbon nanotube-water filled cavity with an inclined heater, Numerical Heat Transfer, Part A: Applications To link to this article: http://dx. ABSTRACT A finite element solution has been performed in this work to solve unsteady governing equations of natural convection in a carbon nanotube–water-f...
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Context 1
... considered physical model is plotted (Figure 1) with coordinates and boundary conditions. In this configuration, there is an inclined heater located at the right bottom corner with constant heat flux. ...
Context 2
... stream function values decrease with increase in nanoparticle volume faction. Figure 11 plots the effects of nanoparticle volume fraction and dimensionless time on temperature gradient for different Rayleigh numbers. As seen from the figure, temperature gradient decreases with increase in nanoparticle volume fraction for all values of Rayleigh number. ...
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Citations
... This exceptional property of nanofluids has a considerable number of applications in heat transfer which contains hybrid-powered engines, chemical industry, pharmaceutical processes, fuel cells, heat transfer performance of the refrigerator, industrial cooling applications of electronic devices, nuclear reactors, solar water heating, smart fluids, extraction of geothermal power, nuclear reactor, micro-electronics, and other energy sources, microelectronics, and nanofluids coolant. Over the last few years, researchers used nanofluids to investigate natural or mixed convection for different types of closed cavities [15][16][17][18][19]. In 2020, Sadeghi et al. [20] presented a natural convection heat transfer model on diverse types of closed cavities which included nanofluids. ...
... Momentum equations: Table 3 Applied relationship between nanoparticle and base fluid for nanofluid [19]. ...
This article deals with a numerical analysis of magneto hydrodynamic natural convection phenomena in a prismatic heat exchanger containing Cu-nanoparticles with water as a base fluid. The nature of this fluid flow is steady, and a heat exchanger is created by involving two uniform cylinders with the same shape in a prismatic cavity. To create the heat exchanger and the buoyancy force, a hot cylinder and another cool cylinder are taken a left and right sides respectively. All other walls of this prismatic cavity are kept as heat insulation. For solving governing equations, the finite element technique is applied by involving Galerkin weighted residual method. The impact of the magnetic field, the buoyancy force, and the size of nanoparticles are explained with the help of involving parameters Rayleigh number (Ra), Hartmann number (Ha), and the nanoparticles volume fraction (ϕ). These parameters are graphically and physically explained by using streamline, isotherm, and heatline contours. The Nusselt number is also calculated and explained in detail to show the validation of this investigation. The outcomes indicate that the natural convective heat and energy transfer are improved by increasing the Rayleigh number, and the nanoparticle volume fraction. Reverse behavior is noticed for the upsurge of Hartmann number. The findings of this heat exchanger model can be pragmatic to construct an operative cooling system for numerous shape mechanical chambers.
... This exceptional property of nanofluids has a considerable number of applications in heat transfer which contains hybrid-powered engines, chemical industry, pharmaceutical processes, fuel cells, heat transfer performance of the refrigerator, industrial cooling applications of electronic devices, nuclear reactors, solar water heating, smart fluids, extraction of geothermal power, nuclear reactor, micro-electronics, and other energy sources, microelectronics, and nanofluids coolant. Over the last few years, researchers used nanofluids to investigate natural or mixed convection for different types of closed cavities [15][16][17][18][19]. In 2020, Sadeghi et al. [20] presented a natural convection heat transfer model on diverse types of closed cavities which included nanofluids. ...
... Momentum equations: Table 3 Applied relationship between nanoparticle and base fluid for nanofluid [19]. ...
This article deals with a numerical analysis of magneto hydrodynamic natural convection phenomena in a prismatic heat exchanger containing Cu-nanoparticles with water as a base fluid. The nature of this fluid flow is steady, and a heat exchanger is created by involving two uniform cylinders with the same shape in a prismatic cavity. To create the heat exchanger and the buoyancy force, a hot cylinder and another cool cylinder are taken a left and right sides respectively. All other walls of this prismatic cavity are kept as heat insulation. For solving governing equations, the finite element technique is applied by involving Galerkin weighted residual method. The impact of the magnetic field, the buoyancy force, and the size of nanoparticles are explained with the help of involving parameters Rayleigh number (Ra), Hartmann number (Ha), and the nanoparticles volume fraction (ϕ). These parameters are graphically and physically explained by using streamline, isotherm, and heatline contours. The Nusselt number is also calculated and explained in detail to show the validation of this investigation. The outcomes indicate that the natural convective heat and energy transfer are improved by increasing the Rayleigh number, and the nanoparticle volume fraction. Reverse behavior is noticed for the upsurge of Hartmann number. The findings of this heat exchanger model can be pragmatic to construct an operative cooling system for numerous shape mechanical chambers.
