Unsteady Natural Convection Boundary Layer Flow with Mass Transfer and a Binary Chemical Reaction

Maleque, Kh. Abdul

doi:10.9734/bjast/2014/2265

Cited by 17 publications

(10 citation statements)

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“…Not quit long, in the work of Maleque [15], the solution to an unsteady temperature and species transport of natural convective flow through permeable surface in a boundary layer was obtained using similarity solution. Maleque [16] investigated the impacts of the temperature dependent chemical reactive fluid and Arrhenius energy kinetic on the flow momentum, concentration and temperature.…”

Section: Introductionmentioning

confidence: 99%

Unsteady oscillatory MHD boundary layer flow past a moving plate with mass transfer and binary chemical reaction

Okedoye

Salawu

2019

SN Appl. Sci.

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In this work, we have studied analytically the heat and mass transfer of unsteady MHD natural convective flow past a motioning plate with binary chemical reaction. The flow surface spontaneously moves with unvaried velocity in the flow direction or opposite under the influence of magnetic field. We studied both frequency-dependent effects and "long-time" effects that would require non-practically long channels to be observed in steady flow. We also explored mathematically the important aspects of reactive fluid flow, especially the residence time flow behaviour, scale-up and scale-down procedures. From the present study, it is seen amongst others that temperature is enhanced as the fluid angular velocity rises which leads to maximum temperature in the body of the liquid. It is discovered that mean velocity decrease with a rise in the species reaction and reaction order. The graphical results representing the governing flow parameters effect were presented and discussed. The flow conditions at the wall were also investigated, presented and described.

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Section: Introductionmentioning

confidence: 99%

Unsteady oscillatory MHD boundary layer flow past a moving plate with mass transfer and binary chemical reaction

Okedoye

Salawu

2019

SN Appl. Sci.

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“…For controlling heat transfer, the convective boundary condition provides a realistic mechanism and it compares the conduction resistance inside a solid body to the convection resistance external to that body, which was offered by the surrounding fluid. The isothermal condition (wall condition; θ(0) = 1) is a particular case of the convective boundary condition, as h f goes to infinity (refer Equations (6,14), and Aziz 40 ), and it is again proven by temperature profile figure (see Figure 9B). Normally, the boundary-layer thermal resistance is very low and the internal plate thermal resistance is high enough for a large value of Bi.…”

Section: For Various Values Of λ Whenmentioning

confidence: 90%

“…The study of boundary‐layer flow involving the binary chemical reaction was probably the first of its kind by Bestman . The influence of n th ‐order chemical reaction and Arrhenius activation energy on unsteady convective flow over a flat porous plate was given by Makinde et al In this direction, Maleque investigated the binary chemical reaction of mixed convective flows and its influence with Arrhenius activation energy, whereas Mustafa et al discussed the effects of Brownian motion, magnetohydrodynamics (MHD), and thermophoresis on a micropolar nanofluid flow under the influence of activation energy with binary chemical reaction recently.…”

Section: Introductionmentioning

confidence: 99%

Analysis of activation energy and thermal radiation on convective flow of a power‐law fluid under convective heating and chemical reaction

RamReddy

Naveen

2019

Heat Trans. Asian Res.

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The purpose of the present article is to explore the influence of activation energy in the mixed convective flow of a power‐law fluid over a permeable inclined plate. The energy expression is incorporated with thermal radiation effect. Additionally, the suction/injection effect and convective thermal conditions are considered at the surface of the inclined plate. The convection along with a nonlinear Boussinesq approximation (i.e., quadratic or nonlinear convection) and usual boundary‐layer assumptions are used in the mathematical formulation. A combined local non‐similarity and successive linearization techniques are used to evaluate the highly complicated governing equations. The effect of pertinent parameters on the fluid flow characteristics and its solutions are conferred using this study with the help of graphs. This kind of investigation is useful in the mechanism of combustion, aerosol technology, high‐temperature polymeric mixtures, and solar collectors, which operate at moderate to very high temperatures.

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“…19 Several contributions into the area of binary-type reactive flows along with the features of activation energy were discussed by Maleque. [20][21][22] Awad et al 23 reported the rotating flow of chemically reactive fluid with generalized Arrhenius theory. Their contributions motivated many other recent researchers to develop the theoretical analysis capable of predicting characteristics of binary mixture of chemically reactive fluid along with Arrhenius activation energy.…”

Section: Introductionmentioning

confidence: 99%

Squeezing flow of convectively heated fluid in porous medium with binary chemical reaction and activation energy

Ahmad

Farooq

Anjum

et al. 2019

Advances in Mechanical Engineering

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In this communication, attention is paid to analyze theoretically the influence of the temperature-dependent binary chemical reaction for hydro-magnetic viscous fluid flow, flowing through the porous medium due to the squeezing phenomenon. For better understanding of variations in the processes of convective heat and mass transport, Arrhenius activation energy is also accounted. The equations governing the flow, heat, and mass are altered into non-linear differential system (ordinary differential equation) by means of suitable conversion methods. Efficient convergent technique is employed to compute resulting non-linear system. The solutions thus acquired are utilized to interrogate the behavior of the physical operating variables on flow velocity, fluid temperature, and fluid concentration. Coefficient of skin friction and rate of heat and mass transport are graphically elaborated. From the graphs, it is concluded that the temperature of fluid dominates against activation energy parameter [Formula: see text] and reaction parameter [Formula: see text]. However, an opposite trend is noted for concentration field. Moreover, temperature field and fluid concentration are incremented for dominant thermal and solutal Biot numbers, respectively. This analysis has the industrial processes which include engine cooling system, polymer industry, lubrication mechanisms, design of cooling and heating systems, molding of plastic sheets, designing porous surfaces to decrease drag, optimizing oil/gas production, in the domain of engineering (i.e. chemical, biomedical, geothermal etc.), chemical or nuclear system, cooling process in nuclear reaction, biochemical process, bimolecular reaction, and polymeric flows which is electrically conducted can be restrained and managed by exploiting the magnetic field. Encouraged by such physical situations, the proposed analysis is accomplished.

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Unsteady Natural Convection Boundary Layer Flow with Mass Transfer and a Binary Chemical Reaction

Cited by 17 publications

References 0 publications

Unsteady oscillatory MHD boundary layer flow past a moving plate with mass transfer and binary chemical reaction

Unsteady oscillatory MHD boundary layer flow past a moving plate with mass transfer and binary chemical reaction

Analysis of activation energy and thermal radiation on convective flow of a power‐law fluid under convective heating and chemical reaction

Squeezing flow of convectively heated fluid in porous medium with binary chemical reaction and activation energy

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