Effect of internal heat generation on free convective power-law variable temperature past a vertical plate considering exponential variable viscosity and thermal conductivity

Ferdows, M.; Murtaza, M. G.; Shamshuddin, Md.

doi:10.1186/s42787-019-0062-5

Cited by 12 publications

(6 citation statements)

References 31 publications

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“…Shamshuddin et al [8] examined the contribution of variable viscosity while reporting the heat transfer aspects in nanofluid flow via rotating disk. Ferdows et al [9] explained the assessment of internal heat transfer applications for power law fluid with attribution of exponential fluid viscosity. The heat transfer analysis in the MOS2 and Fe3O4 nanoparticles with ethylene glycol base liquid have been treated by Shamshuddin et al [9].…”

Section: Introductionmentioning

confidence: 99%

“…Ferdows et al [9] explained the assessment of internal heat transfer applications for power law fluid with attribution of exponential fluid viscosity. The heat transfer analysis in the MOS2 and Fe3O4 nanoparticles with ethylene glycol base liquid have been treated by Shamshuddin et al [9]. Farajollahi et al [10] suggested the heat transfer mechanism in conical turbulators by utilizing the tiny particles.…”

Section: Introductionmentioning

confidence: 99%

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Temperature dependent heat generation and variable viscosity features for viscoelastic fluid with homogeneous and heterogeneous (HH) chemical reactions

Saeed,

Ahmad,

Maatki

et al. 2023

Scientia Iranica

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This investigation presents the heat and mass transfer phenomenon for the chemically reactive flow of second grade fluid subject to the homogeneous and heterogeneous (HH) chemical reactions. The viscosity of fluid is assumed to be temperature dependent instead of constant. The motivations for considering the viscosity as a function of temperature is justified with applications of metallurgical process, crude oil extraction, geothermal systems and machinery lubrication. Additionally, viscous dissipation and temperature dependent heat generation and absorption effects are also introduced to improve the thermal transportation phenomenon. The interaction of different new variables facilitates the problem into dimensionless form. The numerical achievements are predicted with implementing the Runge Kutta (RK4) method. The physical onset behind the parameters have been reported. The tabular quantitative analysis is performed for different physical quantities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature dependent heat generation and variable viscosity features for viscoelastic fluid with homogeneous and heterogeneous (HH) chemical reactions

Saeed,

Ahmad,

Maatki

et al. 2023

Scientia Iranica

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“…Rashidi et al, [13] and Dhanai et al, [14] studied combined free and forced or mixed convective nanofluid flow over inclined surfaces and very recently Rihan [15] and Mkhatshwa et al, [16] studied mixed convection flow over vertical cylinder. Convection with power law wall temperature distribution were studied by Ali [17] and Ferdows et al, [18] where Ferdows et al, [18] investigated wall temperature variations for natural convection along vertical plate and Muñoz-Cobo et al, [19], Kim et al, [20] investigated for cylindrical surfaces.…”

Section: Introductionmentioning

confidence: 99%

Dual Solutions in Mixed Convection Flow Along Non-Isothermal Inclined Cylinder Containing Gyrotactic Microorganism

Nima

Ferdows

2021

ARFMTS

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The purpose of this research is to present dual solution for combined free and forced convection flow towards a non-isothermal permeable inclined cylinder containing gyrotactic microorganism. Though several researches were done on dual solutions for mixed convection and also along the vertical cylinder for the numerous engineering applications but very few works have done on dual solutions for mixed convection with gyrotactic microorganisms. Two steps are performed here to carry out numerical calculations. Firstly, the governing partial differential equations are simplified into set of coupled non-linear ordinary differential equations using similarity transformations and then solved numerically using bvp4c function from MATLAB. Dual solutions are observed for heat, mass and density of motile microorganism transfer rate and also for velocity, temperature, concentration, and microorganism profile beyond a critical point. The research is reached to excellent argument by comparison in few cases between the results obtained from MATLAB and Maple algorithm. The heat, mass and motile microorganism transfer rate decreases from free to mixed convection regime and then increases to forced convection regime with the influence of different flow control parameters. The results also indicate that dual solutions for different flow profiles exist only in free convection dominated regime.

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“…They observed a decline in the magnitude of velocity field as well as pressure inside the boundary layer with increasing values of the magnetic parameter. The free-convection boundary-layer flow with heat generation and variable fluid properties past a vertical plate with exponential variable viscosity and thermal conductivity have been investigated by Ferdows et al (2019). Yang and Lin (2019) studied the flow and heat transfer of non-Newtonian power-law fluid over a stretching sheet in the presence of the variable thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Hall effects on radiated magneto-power-law fluid flow over a stretching surface with power-law velocity slip effect

Ali¹,

Jana

Das

2020

MMMS

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PurposeThis paper aims to assess the effectiveness of Hall currents and power-law slip condition on the hydromagnetic convective flow of an electrically conducting power-law fluid over an exponentially stretching sheet under the effect of a strong variable magnetic field and thermal radiation. Flow formation is developed using the rheological expression of a power-law fluid.Design/methodology/approachThe nonlinear partial differential equations describing the flow are transformed into the nonlinear ordinary differential equations by employing the local similarity transformations and then solved numerically by an effective numerical approach, namely, fourth-order Runge–Kutta integration scheme, along with the shooting iteration technique. The numerical solution is computed for different parameters by using the computational software MATLAB bvp4c. The bvp4c function uses the finite difference code as the default. This method is a fourth-order collocation method. The impacts of thermophysical parameters on velocity and temperature distributions, skin friction coefficients and Nusselt number in the boundary layer regime are exhibited through graphs and tables and deliberated with proper physical justification.FindingsOur investigation conveys that Hall current has an enhancing behavior on velocity profiles and reduces skin friction coefficients. An increase in the power-law index is observed to deplete velocity and temperature evolution. The temperature for the pseudo-plastic (shear-thinning) fluid is relatively higher than the corresponding temperature of the dilatant (shear-thickening) fluid. The streamlines are more distorted and have low intensity near the surface of the sheet for the dilatant fluid than the pseudo-plastic fluid.Social implicationsThe study is pertinent to the expulsion of polymer sheet and photographic films, hydrometallurgical industry, electrically conducting polymer dynamics, magnetic material processing, solutions and melts of polymer processing, purification of molten metals from nonmetallic. The results obtained in this work can be relevant in fluid mechanics and heat transfer applications.Originality/valueThe present problem has, to the authors' knowledge, not communicated thus far in the scientific literature. A comparative study with the published works is conducted to verify the accuracy of the present study. The results obtained in this analysis are significant in providing the standards for validating the accuracies of some numerical or empirical methods.

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Effect of internal heat generation on free convective power-law variable temperature past a vertical plate considering exponential variable viscosity and thermal conductivity

Cited by 12 publications

References 31 publications

Temperature dependent heat generation and variable viscosity features for viscoelastic fluid with homogeneous and heterogeneous (HH) chemical reactions

Temperature dependent heat generation and variable viscosity features for viscoelastic fluid with homogeneous and heterogeneous (HH) chemical reactions

Dual Solutions in Mixed Convection Flow Along Non-Isothermal Inclined Cylinder Containing Gyrotactic Microorganism

Hall effects on radiated magneto-power-law fluid flow over a stretching surface with power-law velocity slip effect

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