Natural convection analysis in a square enclosure with a wavy circular heater under magnetic field and nanoparticles

Dogonchi, A.S.; Tayebi, Tahar; Chamkha, Ali J.; Ganji, D.D.

doi:10.1007/s10973-019-08408-0

Cited by 162 publications

(36 citation statements)

References 38 publications

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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 solving steps of ISPH method for the controlling partial differential Equations (16)(17)(18)(19)(20) with the adjacent boundary conditions (21) are calculated as:…”

Section: Methodsmentioning

confidence: 99%

“…Sheikholeslami et al [15] studied the impacts of radiation and Electrohydrodynamics (EHD) on ferrofluid circulation in a wavy-walled porous enclosure. Dogonchi et al [16] studied the impacts of embedded wavy circular heater and magnetic field on natural convection of a nanofluid in a square enclosure. Tilehnoee et al [16] used ANSYS Fluent for studying the effects of inner wavy heater block on the entropy generation and natural convection of Al 2 O 3 -H 2 O nanofluid in an incinerator-shaped porous cavity.…”

Section: Introductionmentioning

confidence: 99%

“…Dogonchi et al [16] studied the impacts of embedded wavy circular heater and magnetic field on natural convection of a nanofluid in a square enclosure. Tilehnoee et al [16] used ANSYS Fluent for studying the effects of inner wavy heater block on the entropy generation and natural convection of Al 2 O 3 -H 2 O nanofluid in an incinerator-shaped porous cavity. Seyyedi et al [17] applied control volume-based finite element method (CVFEM) for investigating the entropy generation and natural convection of Al 2 O 3 -water nanofluid in L-shaped cavity.…”

Section: Introductionmentioning

confidence: 99%

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Natural convection of Al₂O₃‐water nanofluid filled annulus between a wavy rectangle and a square cavity using Buongiorno's two‐phase model

Aly

2020

Z Angew Math Mech

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In this work, an incompressible smoothed particle hydrodynamics (ISPH) method is used to simulate the natural convection of Al2O3‐water nanofluid filled annulus between a wavy rectangle and a square cavity using non‐homogenous Buongiorno's two‐phase model. In the physical model, the left cavity wall is kept at a high temperature Th, the right wall has a lower temperature Tc, and the horizontal walls are adiabatic. The Lagrangian description of the partial governing equations is discretized using ISPH method. Simulations were carried out for variable wave amplitude (0.01≤A≤0.12), variable wave length of wavy rectangle (0.3≤Lr≤0.8), and variable average of nanoparticle volume fraction (1%≤ϕavg≤10%). Moreover, two cases of thermal conductions including adiabatic and cooling conditions for the inner wavy blockage were considered. The length of the inner wavy rectangle plays an important role on controlling the convective heat transfer and fluid intensity through the annulus. An increase on the length and amplitude of the wavy rectangle reduces the convection flow, maximum values of the stream function and strength of the velocity field. A growing on the average of nanoparticle volume fraction ϕavg reduces the maximum of the stream function, normalized nanoparticle volume fractions φ∗, and average Nusselt number.

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“…investigated the impact of viscous dissipation on free convection flow of nanofluid in presence of internal heat source. Other-related articles include: , , , Dogonchi, Waqas, Seyyedi, Hashemi-Tilehnoee, and Ganji (2019), , Dogonchi, Tayebi, Chamkha, and Ganji (2019), , Saba et al (2018), Ahmed, Khan, and Mohyud-Din (2017), , Khan, Adnan, Ahmed, and Mohyud-Din (2017), Khan, Ahmed, Bin-Mohsen, and Mohyud-Din (2017), Adnan, Asadullah, and .…”

Section: Introductionmentioning

confidence: 99%

Couette flow and heat transfer of heat-generating/absorbing fluid in a rotating channel in presence of viscous dissipation

Jha

Malgwi

2020

Arab Journal of Basic and Applied Sciences

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Theoretical investigation is carried out on flow formation and heat transfer characteristics of viscous incompressible and heat-generating/absorbing fluid in a horizontal rotating channel in presence of viscous dissipation. Exact solution is obtained for two cases of interest: when the fluid considered is heat generating and also when the fluid is heat absorbing. Interesting effect of some governing parameters on fluid temperature, rate of heat transfer and critical Eckert number are identified and discussed using line graphs and tables for both cases. It is found out that the rate of heat transfer decreases with increase in heat source causing an increase in fluid temperature while the contrast is true for heat sink. In addition, critical Eckert number decreases with heat source while it increases with heat sink.

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Natural convection analysis in a square enclosure with a wavy circular heater under magnetic field and nanoparticles

Cited by 162 publications

References 38 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

Natural convection of Al₂O₃‐water nanofluid filled annulus between a wavy rectangle and a square cavity using Buongiorno's two‐phase model

Couette flow and heat transfer of heat-generating/absorbing fluid in a rotating channel in presence of viscous dissipation

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Natural convection analysis in a square enclosure with a wavy circular heater under magnetic field and nanoparticles

Cited by 162 publications

References 38 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

Natural convection of Al2O3‐water nanofluid filled annulus between a wavy rectangle and a square cavity using Buongiorno's two‐phase model

Couette flow and heat transfer of heat-generating/absorbing fluid in a rotating channel in presence of viscous dissipation

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Natural convection of Al₂O₃‐water nanofluid filled annulus between a wavy rectangle and a square cavity using Buongiorno's two‐phase model