Analysis of Entropy Generation in a Horizontal Channel Containing Fluid and Porous Layers

Yadav, Shyam Lal; Singh, Arun K.

doi:10.1615/jpormedia.2019025809

Cited by 3 publications

(3 citation statements)

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“…Azhar et al 22 used both analytical and numerical approach to investigate the impact of entropy production on the dynamics of unsteady MHD fractional Couette flow in a channel with exponentially fluctuating wall temperatures. The effects of entropy production on heat transmission across a contracting surface were investigated by Haideri et al 23 Yadav and Singh 24 examined the effects of entropy production on free convective heat transport in a horizontal channel that was partly filled with a porous medium. Brinkman's model was utilized to promote flow.…”

Section: Introductionmentioning

confidence: 99%

Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Varma,

Ramaprasad,

Balamurugan

2024

Heat Trans

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This research paper focused on investigating the influence of various factors on steady Couette flow beneath a permeable bed. Factors studied included aligned magnetic field, thermal radiation, temperature gradient heat source, viscous dissipation, and Joules dissipation. The momentum and energy equations governing flow and heat transmission were analytically solved to predict the generation of entropy. The findings were visually presented through graphical representations, which effectively demonstrated the effect of these factors on the fluid's velocity, temperature, entropy production, and Bejan number. In addition, the shear stress and rate of heat transfer coefficient at the channel walls were computed and their behavior was documented in tables to provide further insights.

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Section: Introductionmentioning

confidence: 99%

Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Varma,

Ramaprasad,

Balamurugan

2024

Heat Trans

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“…Also, the numerical implications of the skin-friction for isothermal and uniform heat flux cases are submitted in the tabular form. In the field of MHD, Kumar and Singh [42,43] have deliberated the influences of heat source/sink as well as the induced magnetic field in vertical annuli by considering the natural convection. On the free convective boundary layer flow, Merkin [44] first saw the variation of Newtonian heating.…”

Section: Introductionmentioning

confidence: 99%

Influence of Heat Source/Sink on Free Convection in Annular Porous Region

Yadav¹,

Singh²

2021

IJHT

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The significant interpretation of this model is to explore the influence of temperature-dependent heat source/sink on laminar free-convective flow in an annular porous region such as petroleum engineering, thermal technique and groundwater hydrology. For a unified solution of the Brinkman-Darcy model, the regulatory equations solved analytically by applying the variation of parameter technique in terms of Bessel's functions for the heat source and sink. Moreover, we have investigated the Variations of Darcy number, Heat source/sink and viscosity ratio in the presence of isothermal and constant heat flux sequentially. As a result, we received the critical value of the velocity for the radii ratio (R = 2.05 and 2.92) in both the cases of source and sink (S = 1.0 and Si = 0.1) respectively which is exhibited through the graphs. Further, the numerical outcomes present of the skin friction including volume flow with annular gap by the graphs as well as tables.

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“…Some recent literature reviews related to nanofluids have also studied by Hayat et al 22–25 as well as Muhammad et al 26–28 So many researchers 29–33 have carried out works in this direction. For the velocity and the temperature fields, the thermal energy equations on the behalf of fluid and porous layers are solved analytically by Yadav and Singh, 34 with the help of separation of variables method, where each wall has an increased entropy generation due to fluid friction, and a parallel result is acquired around its interface. Most recently, few works on entropy with nanofluid are completely discussed by Hayat et al 35,36 in several aspects.…”

Section: Introductionmentioning

confidence: 99%

Transient free convective flow through a vertical cylinder filled with a porous material

Sarveshanand¹,

Singh

2020

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This article aims to explore the impressive impact of emerging parameters on transient fully evolved free convective flow inside a vertical cylinder containing a porous material. The mathematical formulation of the model related to the considered physical circumstance is presented under compatible boundary conditions. Closed-form solutions are received for the velocity field, the temperature distribution, mass flux, skin friction, and the Nusselt number in terms of Bessel functions and modified Bessel functions of the first kind. Impressive effects of parameters such as the Darcy number Da, Prandtl number Pr, viscosity ratio M, and also time t on both the velocity and temperature distribution have been explored employing graphs and tables. It is irradiated by analysis that flow erection, heat transfer rate, skin friction, and mass flux are admirably impacted by the Prandtl number, the Darcy number, viscosity ratio parameter, and time. It is found that both the velocity and temperature field profiles rise with the rising value of time and ultimately attain their steady state. Moreover, the Prandtl number and the viscosity ratio parameter reduce the velocity profiles, while the reverse phenomenon occurs with the Darcy number. K E Y W O R D S Darcy number, laminar flow, natural convection, porous medium

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Analysis of Entropy Generation in a Horizontal Channel Containing Fluid and Porous Layers

Cited by 3 publications

References 0 publications

Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Impact of entropy generation and temperature gradient heat source on Couette flow in a permeable magnetic field

Influence of Heat Source/Sink on Free Convection in Annular Porous Region

Transient free convective flow through a vertical cylinder filled with a porous material

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