Effects of viscous variation, thermal radiation, and Arrhenius reaction: The case of MHD nanofluid flow containing gyrotactic microorganisms over a convectively heated surface

Famakinwa, O.A.; Kọrikọ, Olubode Kolade; Adegbie, K. S.; Omowaye, Adeola John

doi:10.1016/j.padiff.2021.100232

Cited by 13 publications

(4 citation statements)

References 30 publications

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“…Yin et al (2022) conducted the thermally radiative and bio-convective flow of MHD Sisko fluid past a stretched cylinder subject to microorganisms. Famakinwa et al (2022) analyzed thermally radiative and chemical species effects on MHD nanofluid flow past a convectively heated surface subject to the effects of microorganisms. Azam et al (Azam, 2022) have inspected thermal extrusion in a nonlinear manner for chemically reactive fluid flow subject to microorganisms and have deduced that the concentration of microorganisms is affected by Peclet and bio-convective Lewis number.…”

Section: Introductionmentioning

confidence: 99%

Second law analysis on Ree-Eyring nanoliquid and Darcy Forchheimer flow through a significant stratification in the gyrotactic microorganism

Zafar,

Zaib,

Ali

et al. 2023

HFF

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Purpose The modern day has seen an increase in the prevalence of the improvement of high-performance thermal systems for the enhancement of heat transmission. Numerous studies and research projects have been carried out to acquire an understanding of heat transport performance for their functional application to heat conveyance augmentation. The idea of this study is to inspect the entropy production in Darcy-Forchheimer Ree-Eyring nanofluid containing bioconvection flow toward a stretching surface is the topic of discussion in this paper. It is also important to take into account the influence of gravitational forces, double stratification, heat source–sink and thermal radiation. In light of the second rule of thermodynamics, a model of the generation of total entropy is presented. Design/methodology/approach Incorporating boundary layer assumptions allows one to derive the governing system of partial differential equations. The dimensional flow model is transformed into a non-dimensional representation by applying the appropriate transformations. To deal with dimensionless flow expressions, the built-in shooting method and the BVP4c code in the Matlab software are used. Graphical analysis is performed on the data to investigate the variation in velocity, temperature, concentration, motile microorganisms, Bejan number and entropy production concerning the involved parameters. Findings The authors have analytically assessed the impact of Darcy Forchheimer's flow of nanofluid due to a spinning disc with slip conditions and microorganisms. The modeled equations are reset into the non-dimensional form of ordinary differential equations. Which are further solved through the BVP4c approach. The results are presented in the form of tables and figures for velocity, mass, energy and motile microbe profiles. The key conclusions are: The rate of skin friction incessantly reduces with the variation of the Weissenberg number, porosity parameter and Forchheimer number. The rising values of the Prandtl number reduce the energy transmission rate while accelerating the mass transfer rate. Similarly, the effect of Nb (Brownian motion) enhances the energy and mass transfer rates. The rate of augments with the flourishing values of bioconvection Lewis and Peclet number. The factor of concentration of microorganisms is reported to have a diminishing effect on the profile. The velocity, energy and entropy generation enhance with the rising values of the Weissenberg number. Originality/value According to the findings of the study, a slip flow of Ree-Eyring nanofluid was observed in the presence of entropy production and heat sources/sinks. There are features when the implementations of Darcy–Forchheimer come into play. In addition to that, double stratification with chemical reaction characteristics is presented as a new feature. The flow was caused by the stretching sheet. It has been brought to people's attention that although there are some investigations accessible on the flow of Ree-Eyring nanofluid with double stratification, they are not presented. This research draws attention to a previously unexplored topic and demonstrates a successful attempt to construct a model with distinctive characteristics.

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Section: Introductionmentioning

confidence: 99%

Second law analysis on Ree-Eyring nanoliquid and Darcy Forchheimer flow through a significant stratification in the gyrotactic microorganism

Zafar,

Zaib,

Ali

et al. 2023

HFF

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“…[10] discussed the MHD nanofluid flow between two cylinders in a theoretical analysis. [11] discussed the MHD nanofluid flow under the effects of viscous variation, thermal radiation, and the Arrhenius reaction. [12] discussed the stability analysis of MHD hybrid nanofluid flow with quadratic velocity over a stretching sheet.…”

Section: Introductionmentioning

confidence: 99%

The Role of External Heat Sources and Chemical Reactions for Enhanced Heat Transfer through Maxwell Nanofluid Flow

ahmad,

Ali,

Bariq

et al. 2023

Preprint

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This research addresses finding the dynamics of heat transfer in two-dimensional MHD Maxwell nanoflu-ids flow under the influence of mixed convection and activation energy. The heat source is strategically positioned to take advantage of convective heat transfer and increase the overall thermal performance. Numerical simulations employing computational fluid dynamics (CFD) approaches are used to evaluate the improved thermal transfer efficiency. The governing equations, which comprise the continuity, momentum, energy, and species transport equations, are addressed using appropriate similarity transformations acquired from a PDE (Partial differential equations) model that has been turned into an ODE(ordinary differential equations). MATLAB is used to solve such a nonlinear ODE model. The effects of many parameters, such as nanoparticle concentration, the intensity of an external heat source, and chemical reaction speeds, are intentionally explored. The fluid flow declaration is evaluated in terms of viscosity, and porosity. It was discovered that increasing inputs of rotation, porosity factor, activation energy, and magnetic effect resulted in a significant increase in the profile of temperature. The variational patterns of Nusselt number and skin friction are numerically performed at a rectangular stretching surface.

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“…The thermal conductivity and heat generation effects are taken into account in this model. The stream of electrically conducting MHD nano liquid, Famakinwa et al [37] explored numerically across a convectively thermal surface, including gyrotactic microbes. In the existence of a heat source, Fetecau et al [38] investigated the hydromagnetic free convective flow comprising mass, chemical reaction, and Newtonian heating across a vertical plate.…”

Section: Introductionmentioning

confidence: 99%

Insight into Significance of Bioconvection on MHD Tangent Hyperbolic Nanofluid Flow of Irregular Thickness across a Slender Elastic Surface

et al. 2022

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This numerical investigation effectively establishes a unique computing exploration for steady magnetohydrodynamic convective streams of tangent hyperbolic nanofluid traveling across a nonlinearly elongating elastic surface with a variable thickness. In addition, the importance of an externally imposed magnetic field of tangent hyperbolic nanofluid is comprehensively analyzed by considering the substantial impact of thermal conductivity and thermal radiation consequences. The governing PDEs (partial differential equations) are transmuted into a nonlinear differential structure of coupled ODEs (ordinary differential equations) using a series of variable similarity transformations. Furthermore, these generated ODEs (ordinary differential equations) are numerically set using a novel revolutionary Runge-Kutta algorithm with a shooting approach constructed in a MATLAB script. In this regard, extensive comparison studies are carried out to validate the acquired numerical results. The interactions between the associated profiles and the relevant parameters are rationally explored and shown using graphs and tabular forms. The velocity distribution declined with improving Weissengberg number We and power-law index m, while the reverse performance can be observed for temperature. As enhancement in Brownian motion, Thermophoretic and radiation parameters significantly rise in temperature distribution. The use of many different technological and industrial systems, including nano-bioconvective systems, nano-droplet evaporation, nano-ink jet printing, and microbial fuel cells, would benefit this research study.

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Effects of viscous variation, thermal radiation, and Arrhenius reaction: The case of MHD nanofluid flow containing gyrotactic microorganisms over a convectively heated surface

Cited by 13 publications

References 30 publications

Second law analysis on Ree-Eyring nanoliquid and Darcy Forchheimer flow through a significant stratification in the gyrotactic microorganism

Second law analysis on Ree-Eyring nanoliquid and Darcy Forchheimer flow through a significant stratification in the gyrotactic microorganism

The Role of External Heat Sources and Chemical Reactions for Enhanced Heat Transfer through Maxwell Nanofluid Flow

Insight into Significance of Bioconvection on MHD Tangent Hyperbolic Nanofluid Flow of Irregular Thickness across a Slender Elastic Surface

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