Analysis of melting behavior of PCMs in a cavity subject to a non-uniform magnetic field using a moving grid technique

Ghalambaz, Mohammad; Zadeh, Seyed Mohsen Hashem; Mehryan, S.A.M.; Pop, Ioan; Wen, Dongsheng

doi:10.1016/j.apm.2019.09.015

Cited by 150 publications

(35 citation statements)

References 52 publications

(54 reference statements)

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“…Ibrahim and Tulu 24 researched the MHD flow of a nanofluid with heat transfer treatment embedded in porous media. Recently, many researchers 25–39 have investigated with or without MHD effects on nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

MHD rotating flow of a Maxwell fluid with Arrhenius activation energy and non‐Fourier heat flux model

Ramaiah¹,

Surekha

Gangadhar

et al. 2020

Heat Trans

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In the present work, the effects of the transfer of heat, as well as the mass phenomenon of a Maxwell fluid in revolving flow over a unidirectional stretching surface are discussed. The result of the magnetic field within the boundary layer is considered. In the energy equation, the heat flux model of non-Fourier Cattaneo-Christov is employed. The customized Arrhenius function for energy activation is used. By using the transformation strategy, nondimensional expressions are achieved. To predict the highlights of the current effort, the result of the emerging nonlinear differential structure is calculated with the aid of the shooting procedure as well as the Runge-Kutta Fehlberg procedure. The influence of velocity and temperature along with concentration profiles for various physical parameters is analyzed. The involvement of fluid relaxation and thermal retardation phenomena is unequivocally mentioned.The evolution of heat transfer, as well as the rate of mass in the flow of fluids, is illustrated by the use of graphs in addition to tables. Furthermore, the current effort is confirmed by examination with previously published results, which establishes a strategy for the execution of a numerical approach. It is observed that the concentration of a solute in dual combination is relative to both rotation parameters along with activation energy. Besides this, a diminishing pattern in the distribution of temperature is described within the existence of the Cattaneo-Christov flux law by association with the rate of heat transfer because of Fourier's law. The present investigation can be applied in numerous engineering and technical procedures including the development of thin sheets, modeling of plastic sheets, in the lubrication system industry related to polymers, compression, and injection shaping in the area of chemical production and bimolecular reactions. Inspired by those applications, the present work is undertaken. K E Y W O R D S Arrhenius activation energy, Cattaneo-Christov heat flux model, chemical reaction, Maxwell fluid, MHD, rotating frame

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Section: Introductionmentioning

confidence: 99%

MHD rotating flow of a Maxwell fluid with Arrhenius activation energy and non‐Fourier heat flux model

Ramaiah¹,

Surekha

Gangadhar

et al. 2020

Heat Trans

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“…The dimensionless coupled linear partial differential equations (12) and (13) with the prescribed boundary conditions (14) are simplified employing the finite difference scheme to obtain a system of algebraic equations. Central difference approximation is used to discretize the coupled PDEs, since it is more accurate than the forward and backward differences.…”

Section: Numerical Solutionmentioning

confidence: 99%

“…Numerical meshes −1 = = ' R < ' < ' g … < ' WhR = 1 and −1 = # R < # < # g … < # ;hR = Y are considered along ' and #-axes. Central difference approximations for both first and second derivatives of second order accuracy of the equations (12) and (13) are as follows:…”

Section: Numerical Solutionmentioning

confidence: 99%

“…Raza et al [11] examined the combined effects of thermal radiation and magnetic field of molybdenum disulfide nanofluid in a channel with changing walls with different shapes. Ghalambaz et al [12] investigated the melting flow and heat transfer of electrically conductive phase change materials subjecting them to a non-uniform magnetic field addressed in a square enclosure. Umavathi and Chamkha [13] numerically investigated the steady natural convection flow for a hydrodynamics case in a vertical rectangular duct employing the finite difference method (FDM).…”

Section: Introductionmentioning

confidence: 99%

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Effects of the porous boundary and inclined magnetic field on MHD flow in a rectangular duct

Chutia¹

2020

J. Appl. Math. Comput. Mech.

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“…Using a numerical technique, Galushchak et al [28] simulated the thermal behavior of a tube with PHT (Punched-Helical-Tape) baffles. Other flow and heat transfer structures can be found in Ghachem et al [29], Al-Rashed et al [30,31], Ghalambaz and Zhang [32], Ghalambaz et al [33][34][35], Fodor [36], Mehryan et al [37,38], Kolsi [39], Kolsi et al [40,41] [68], and Selimefendigil [69][70][71][72].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the Hydrodynamic Characteristics in Shell-and-Tube Heat Exchangers by Using W-Baffle Vortex Generators

Menni

Chamkha

Ameur³

2020

Period. Polytech. Mech. Eng.

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Improving the hydrodynamic characteristics of STHECs (Shell-and-Tube Heat Exchanger Channels) by using BVGs (Baffle-type Vortex Generators) is among the common passive methods due to their proved efficiency. In this computational investigation, the same method is used to enhance the hydrodynamic behavior of STHECs, by inserting W-shaped Baffle-type Vortex Generators. The numerical model represented by the computational FVM (Finite Volume Method) is used to simulate and analyzed the considered physical model. The fluid used is air, its thermal physical properties are constant, turbulent, incompressible, and its temperature is 300 K at the inlet section of the STHEC. The flow velocity ( Uin ) and atmospheric pressure ( Patm ) are considered as boundary conditions at the entrance (x = 0) and exit (x = L) of the channel, respectively. The results showed that the friction coefficients were related to the pressure, velocity, and Reynolds number values. High values of Re yielded an acceleration of the fluid, resulting thus in increased pressure on the solid walls and augmented friction values.

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Analysis of melting behavior of PCMs in a cavity subject to a non-uniform magnetic field using a moving grid technique

Abstract: This is a repository copy of Analysis of melting behavior of PCMs in a cavity subject to a non-uniform magnetic field using a moving grid technique.

Cited by 150 publications

References 52 publications

MHD rotating flow of a Maxwell fluid with Arrhenius activation energy and non‐Fourier heat flux model

MHD rotating flow of a Maxwell fluid with Arrhenius activation energy and non‐Fourier heat flux model

Effects of the porous boundary and inclined magnetic field on MHD flow in a rectangular duct

Enhancement of the Hydrodynamic Characteristics in Shell-and-Tube Heat Exchangers by Using W-Baffle Vortex Generators

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