Effect of viscous dissipation on natural convection flow between vertical parallel plates with time-periodic boundary conditions

Jha, Basant K.; Ajibade, Abiodun O.

doi:10.1016/j.cnsns.2011.09.020

Cited by 45 publications

(14 citation statements)

References 37 publications

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“…It was concluded that the role of Strouhal number is to decrease the periodic temperature and velocity of the fluid. Since then, a lot of research articles with different physical situations have been published in this field Ajibade, 2010, 2012;Adesanya et al, 2015): by modifying his work to the case where there is suction/injection on the channel wall ( Jha and Ajibade, 2010), with external applied transverse magnetic field (Adesanya et al, 2015) and effect of viscous dissipation on flow formation ( Jha and Ajibade, 2012) are all published work as an extension of Wang (1988) to a more realistic physical situation. In other work, Adesanya (2015) examined free convection flow of heat generating fluid through a porous vertical channel with velocity slip and temperature jump.…”

Section: Natural Convection Flowmentioning

confidence: 99%

Natural convection flow in a vertical micro-annulus with time-periodic thermal boundary conditions

Jha

Oni

2018

MMMS

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Purpose The purpose of this paper is to investigate the impact of time-periodic thermal boundary conditions on natural convection flow in a vertical micro-annulus. Design/methodology/approach Analytical solution in terms of Bessel’s function and modified Bessel’s function of order 0 and 1 is obtained for velocity, temperature, Nusselt number, skin friction and mass flow rate. Findings It is established that the role of Knudsen number and fluid–wall interaction parameter is to decrease fluid temperature, velocity, Nusselt number and skin friction. Research limitations/implications No laboratory practical or experiment was conducted. Practical implications Cooling device in electronic panels, card and micro-chips is frequently cooled by natural convection. Originality/value In view of the amount of works done on natural convection in microchannel, it becomes interesting to investigate the effect that time-periodic heating has on natural convection flow in a vertical micro-annulus. The purpose of this paper is to examine the impact of time-periodic thermal boundary conditions on natural convection flow in a vertical micro-annulus.

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Section: Natural Convection Flowmentioning

confidence: 99%

Natural convection flow in a vertical micro-annulus with time-periodic thermal boundary conditions

Jha

Oni

2018

MMMS

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“…Jah and Ajibade [1] studied the impact of viscous dissipation on natural convection folic in between vertical parallel plates and with periodic boundary conditions. Heat generation along with absorption effects on natural convection flow between two vertical parallel plates which are infinite are subjected to periodic heating in the presence of suction and injection were studied by Jha and Ajibade [2], as it was shown, the impact of heat generation is reciprocal to absorption on flow.…”

Section: Introductionmentioning

confidence: 99%

Free Convection in a Vertical Slit Micro-channel with Super-hydrophobic Slip and Temperature Jump Conditions

Ramanuja¹,

Krishna²,

Sree³

et al. 2020

IJHT

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The main objective of the convective incompressible fluid flow placed in a magnetic field, with vertical motion through an isothermally heated porous channel. The Super-hydrophobic the slip was applied on one wall along with temperature jump, while there is no slip on another wall. The analytical results are discussed qualitatively for the parameters which were on the mathematical formulation on the basis of the model equations designed for the linear momentum and energy balance. Decreasing the value of the slip parameter is noticed due to decreasing in temperature. The effects of heat source and porous medium on the micro channel flow is analysized in detail. Coparesion of current results is made with the earlier work. The effect of Dray parameter is to increase the fluid velocity in the channel.

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“…Combined effect of viscous dissipation and Joule heating on the coupling of conduction and free convection along a vertical flat plate has been investigated by Alim et al (2008). Jha and Ajibade (2012) investigated the effect of viscous dissipation on natural convection flow between vertical parallel plates with time-periodic boundary conditions. They solved the governing equations analytically and discovered that heat is being transferred from the fluid with viscous dissipation to the plate when the fluid has small Prandtl.…”

Section: Introductionmentioning

confidence: 99%

Natural convection of fluid with variable viscosity and viscous dissipation from a heated vertical wavy surface in presence of magnetic field

Parveen

Алим²

2020

J. nav. arch. mar. engg.

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ABSTRACT The present numerical work describes the effect of the temperature dependent variable viscosity and viscous dissipation on natural convection heat transfer boundary layer flow of a viscous incompressible electrically conducting fluid along a vertical wavy surface in presence of a transverse magnetic field. The wavy surface is maintained at uniform wall temperature that is higher than that of the ambient. A simple coordinate transformation is employed to transform the wavy surface into a flat plate. A marching finite difference scheme is used for present analysis. The numerical results, including the developments of the skin friction coefficients, the local Nusselt number, the streamlines as well as the isotherms are presented and discussed in detail. The results of this investigation illustrated that the skin friction coefficient increase with an increase of the variable viscosity and viscous dissipation parameter, while the local Nusselt number at the heated surface decrease with increasing values of variable viscosity, intensity of magnetic field and viscous dissipation parameter.

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Effect of viscous dissipation on natural convection flow between vertical parallel plates with time-periodic boundary conditions

Cited by 45 publications

References 37 publications

Natural convection flow in a vertical micro-annulus with time-periodic thermal boundary conditions

Natural convection flow in a vertical micro-annulus with time-periodic thermal boundary conditions

Free Convection in a Vertical Slit Micro-channel with Super-hydrophobic Slip and Temperature Jump Conditions

Natural convection of fluid with variable viscosity and viscous dissipation from a heated vertical wavy surface in presence of magnetic field

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