Numerical study of nanofluid thermo-bioconvection containing gravitactic microorganisms in porous media: Effect of vertical throughflow

Saini, Shivani; Sharma, Y. D.

doi:10.1016/j.apt.2018.07.021

Cited by 50 publications

(13 citation statements)

References 45 publications

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“…The nonlinear set of ordinary differential equations, Equations (11)(12)(13)(14) with boundary conditions (15)- (16) are solved numerically in this study by using the BVP4C numerical method in MATLAB for various values of the flow controlling parameters. This method was used by many researchers to solve various complex transport problems.…”

Section: Numerical Solution and Validationmentioning

confidence: 99%

“…Bég et al studied the effects of both the expanding and contracting sheet in bioconvection nanofluid dynamics in a deformable channel as a model of a fuel cell. In recent years, many researchers have investigated bioconvection in nanofluids …”

Section: Introductionmentioning

confidence: 99%

“…In recent years, many researchers have investigated bioconvection in nanofluids. 15,16 Species transfer occurs in some situations such as in the paper drying process through evaporation. Species/mass transfer can produce a "blowing effect'' depending on the concentration of the wet paper sheet.…”

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confidence: 99%

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MHD boundary layer bionanoconvective non‐Newtonian flow past a needle with Stefan blowing

Amirsom

Uddin

Ismail

2018

Heat Trans. Asian Res.

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The purpose of the article is to present a transport model for magnetohydrodynamics‐forced convective non‐Newtonian boundary flow from a thin needle in a nanofluid in the presence of microorganisms and Stefan blowing. The governing equations are reduced to ordinary differential equations with the help of similarity transformations and then numerically solved by using the Matlab bvp4c function. The effect of various emerging parameters on the flow field, heat, mass, and density of motile microorganisms transfer was computed and studied. It was found that some of the parameters have an important effect on the boundary layer thickness. Justification with earlier simpler model in the absence of magnetic field is included. The model finds applications in various transdermal delivery system, biomedical electromagnetic treatments and to design new medical devices for cell delivery to the central nervous system.

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Section: Numerical Solution and Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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MHD boundary layer bionanoconvective non‐Newtonian flow past a needle with Stefan blowing

Amirsom

Uddin

Ismail

2018

Heat Trans. Asian Res.

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“…Rashad and Hossam [28] investigated the mixed convection flow of nanofluid due to a stretching cylinder encountered the convective boundary conditions. Saini and Sharma [29] implemented a novel numerical algorithm for problems regarding the thermo-bioconvection flow of nanofluid in the existence of a porous medium. The impact of temperature-dependent viscosity in the flow of nanofluid over a rotating system was investigated by Xun et al [30].…”

Section: Introductionmentioning

confidence: 99%

Significance of Bioconvective and Thermally Dissipation Flow of Viscoelastic Nanoparticles with Activation Energy Features: Novel Biofuels Significance

et al. 2020

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The analysis of bioconvection flow nanofluids is the topic of concern in recent decades as it involves a variety of physical significance in biotechnology. Bioconvection has many applications in the interdisciplinary field of sciences such as in biomedical science, biofuel biotechnology, and enzyme-based biosensors, among others. The aim of the current work is to analyze the bioconvection phenomenon in the two-dimensional steady flow of viscoelastic nanofluid over a vertical surface. Here, the effects of activation energy, second-order slip, and nanoparticles zero mass flux conditions are considered to investigate the flow problem. Based on dimensionless variables, the governing partial differential equations (PDEs) are transformed into ordinary differential equations (ODEs) which are further solved numerically by using a built-in BVP4C approach in MATLAB software. Various controlling parameters like Hartman number, viscoelastic parameter, first and second-order slip factors, buoyancy ratio parameter, thermophoresis parameter, Brownian motion constant, bioconvection Lewis number and Peclet number are graphically illustrated for the distributions of velocity, temperature, concentration, and motile microorganism. Moreover, the variation of local Nusselt number, local Sherwood number, and motile density number are numerically investigated for the involved parameters.

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“…Makinde et al worked on the bioconvection process caused by a gyrotactic microorganism. Focusing on the gravitactic microorganisms, Saini et al and Mil‐Martínez et al analyzed the bioconvective boundary layer nanofluid flow and thermo‐bioconvection boundary layer nanofluid flow with zero nanoparticle flux, respectively. The behavior of the MHD bioconvective flow due to the gyrotactic microorganism in a stratified medium was observed by Alsaedi et al Rehman et al continued with the investigation of the impact of external magnetic field on the bioconvection process.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic bio‐nanoconvective Naiver slip flow of micropolar fluid in a stretchable horizontal channel

Zohra

Uddin

Ismail

2019

Heat Trans. Asian Res.

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The purpose of this paper is to formulate and analyze a nano-bio transport model for magnetohydrodynamic convective flow, heat, and mass diffusion of micropolar fluid containing gyrotactic microorganisms through a horizontal channel. Both the walls are considered to be stretched, and the Navier slip boundary condition is taken into account. The governing bio-nano transport partial differential equations are rendered to ordinary differential equations using similarity variables. The resulting normalized self-similar boundary value problem is solved computationally with the Matlab bvp4c function. The effect of the controlling parameters on the nondimensional velocity, temperature, nanoparticle concentration, and motile microorganism density functions, and their gradients at the wall are visualized graphically and in a tabular form and expounded at length. Validation with a previous simpler model is included. All physical quantities, except the local Nusselt number, increases with an increase in the velocity slip and magnetic parameters. The present problem finds applications in industries related to pharmaceutical, nanofluidic devices, microbial enhanced oil recovery, modeling oil, and gas-bearing sedimentary basins.

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Numerical study of nanofluid thermo-bioconvection containing gravitactic microorganisms in porous media: Effect of vertical throughflow

Cited by 50 publications

References 45 publications

MHD boundary layer bionanoconvective non‐Newtonian flow past a needle with Stefan blowing

MHD boundary layer bionanoconvective non‐Newtonian flow past a needle with Stefan blowing

Significance of Bioconvective and Thermally Dissipation Flow of Viscoelastic Nanoparticles with Activation Energy Features: Novel Biofuels Significance

Magnetohydrodynamic bio‐nanoconvective Naiver slip flow of micropolar fluid in a stretchable horizontal channel

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