Steady natural convection heat and mass transfer flow through a vertical porous channel with variable viscosity and thermal conductivity

Ajibade, Abiodun O.; Ojeagbase, Princely Ohiolei

doi:10.1002/eng2.12268

Cited by 7 publications

(9 citation statements)

References 19 publications

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“…From the table above, it is clearly seen that when s = 0 is considered in the present work, there is an excellent agreement with the work of Ajibade and Mukhtar. 12…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Role of suction/injection on free convective flow in a vertical porous channel with non‐Fourier effects in the presence of periodic boundary

Ajibade,

Jibril,

Mukhtar

2024

Heat Trans

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The key attention of this work is on the impact of suction/injection on the free convective flow of a viscous fluid passing between two infinite, parallel, vertical and porous plates with non‐Fourier effects. The analysis focuses on a porous channel with boundaries featuring a steady–periodic temperature regime. The governing equations, representing velocity(momentum) and temperature(energy) fields, are well‐stated in dimensional form. Employing a separation technique, the momentum and energy equations are separated into steady and periodic components. On solving, the resulting second‐order ordinary differential equations derived, revealed the expressions for velocity and temperature in dimensionless form. However, the study investigates the influence of various flow parameters used in this work, including suction/injection , heat source/sink , Strouhal number , Prandtl number , and dimensionless relaxation time , on the velocity and temperature distributions. Also not left out is the rate of heat transfer on the flow performance and the skin‐friction coefficient on the plates. The findings are visualized using MATLAB‐generated graphs. An interesting observation found during the course of investigation in that the introduction of suction/injection enhances the flow velocity and fluid temperature within the channel, and they are both seen as declining functions of the Strouhal number, which measures the frequency of periodic heating on the plates. Furthermore, when the suction/injection parameter(s) is being relaxed, this study demonstrates a strong agreement with the findings of Ajibade and Mukhtar.

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“…From the table above, it is clearly seen that when s = 0 is considered in the present work, there is an excellent agreement with the work of Ajibade and Mukhtar. 12…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Role of suction/injection on free convective flow in a vertical porous channel with non‐Fourier effects in the presence of periodic boundary

Ajibade,

Jibril,

Mukhtar

2024

Heat Trans

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“…Prathap Kumar et al [10] study gives a mathematical answer to the problem of fully developed laminar flow occurs between two vertically parallel plates filled with two viscous fluids that can't mix and stress fluids that are coupled in a composite porous medium. Ajibade [11] study examines how shear heating and changing characteristics affect steady free convection in transfer of temperature and quantity of matter through a vertical channel, incorporating linear temperature-dependent variations in viscosity and thermal conductivity. Adeyemo et al [12] investigates heat and mass transfer in a nonlinear convective fluid flow with variable viscosity in a porous medium, emphasizing the influence of viscosity on hydromagnetic coupling stress, especially with internal heat generation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Slip Phenomena on Heat and Mass Transfer in a Vertical Channel with immiscible Micropolar and Viscous Fluids with variable viscosity

Srin,

Gosty,

Babu

2024

Preprint

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This research delves into the intricate dynamics of heat and mass transfer within a vertical channel comprising immiscible micropolar and viscous fluids. The study incorporates the influence of slip phenomena, specifically examining velocity, thermal, and diffusion slips, which significantly impact the overall transport processes. The investigation employs a rigorous numerical approach, employing the Runge-Kutta numerical method to simulate and analyze the complex interactions within the system. The integration of slip effects adds an additional layer of complexity to the analysis, offering insights into how these phenomena influence the overall heat and mass transfer characteristics. The findings of this research enrich our comprehension of fluid dynamics, offering insights for enhancing processes across diverse engineering applications that entail Microscopic-scale fluids and sticky fluids in a vertical channels. Through analysis, dimensionless velocity, angular velocity, thermal energy, and diffusion are scrutinized beyond the pertinent parameters and visually represented to enable meaningful insights. Bar charts also depict important elements of heat and mass transfer, such as shear stress, Nusselt number, and Sherwood number values, making it easier to evaluate the rates of transfer across the channel's surface.

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“…Abiodun O Ajibade [17] studied the natural convection flow in steady state analytically to determine the effects of linear variation of viscosity and thermal conductivity with temperature together with suction or injection using differential transformation method. The present investigation carries on the effect of chemical reaction and variable fluid properties (VFP) together with a case of constant fluid properties (CFP) on free convection heat and mass transfer.…”

Section: Introductionmentioning

confidence: 99%

Double Diffusive Free Convection With Variable Physical Properties in an Unstable Stratified Media

2023

IRJMETS

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A detailed analysis is made to study the free flow effects of inverse variation of viscosity and linear variation of thermal conductivity on combined diffusion over a vertical surface in non-isothermal surroundings and the temperature of the surface varies linearly with the axial co-ordinate. The effects of chemical reaction together with suction or injection are also considered for aiding buoyancies. A careful investigation is carried out in reducing the governing equations into a system of non-linear ordinary differential equations to get similarity solutions for the problem. Numerical solutions of the equations subject to appropriate boundary conditions are solved by Modified Nachtsheim-Swigert technique for different values of the parameters involved. Important results related to the flow, heat and mass transfer characteristics are presented through tables.

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Steady natural convection heat and mass transfer flow through a vertical porous channel with variable viscosity and thermal conductivity

Cited by 7 publications

References 19 publications

Role of suction/injection on free convective flow in a vertical porous channel with non‐Fourier effects in the presence of periodic boundary

Role of suction/injection on free convective flow in a vertical porous channel with non‐Fourier effects in the presence of periodic boundary

Numerical Analysis of Slip Phenomena on Heat and Mass Transfer in a Vertical Channel with immiscible Micropolar and Viscous Fluids with variable viscosity

Double Diffusive Free Convection With Variable Physical Properties in an Unstable Stratified Media

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