Numerical modeling of time-dependent bio-convective stagnation flow of a nanofluid in slip regime

Kumar, Rakesh; Sood, Shilpa; Shehzad, Sabir Ali; Sheikholeslami, M.

doi:10.1016/j.rinp.2017.08.059

Cited by 40 publications

(6 citation statements)

References 46 publications

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“…Kumar et al. [24] investigated an unsteady stagnation point flow of bioconvective nanofluid with influence of thermophoresis, Brownian diffusion and slip velocity numerically by using Keller-box scheme. Mabdood et al.…”

Section: Introductionmentioning

confidence: 99%

Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Al‐Khaled

Khan

2020

Heliyon

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On the account of motivating fabrication of bioconvection phenomenon in various engineering and industrial systems, an attention has been devoted by researchers in current decade. Therefore, this theoretical investigation deals with the utilization of bioconvection phenomenon in flow of tangent hyperbolic nanofluid over an accelerated moving surface. It is assumed that the flow is generated due to periodically motion of the sheet. The energy equation is modified by entertaining the nonlinear thermal radiation features. The chemical reaction effects are elaborated in the concentration equation. Moreover, the significance of present flow problem increases by utilizing the thermophoresis and Brownian motion effects. The governing equations are transmuted into non-dimensional form with utilization of appropriate quantities. The analytical solution is computed by using homotopy analysis method. The implications of promising parameters on velocity profile, temperature profile, nanoparticles volume fraction and microorganisms profile is evaluated graphically. The presence of radiation parameter, thermophoresis and Brownian motion effects are more frequent for enhancement of heat transfer. The reported observations can efficiently use in the improvement of heat transfer devices as well as microbial fuel cells.

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Section: Introductionmentioning

confidence: 99%

Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Al‐Khaled

Khan

2020

Heliyon

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“…Bionanofluid flow over porous stretched surface through mutual effects of microorganisms and buoyancy forces is reported by Mutuku and Makinde [41]. Kumar et al [42] investigated the unsteady stagnation point flow in bio-convective nanofluid over shrinking surface in slip region. Khan et al [43] deliberated convective flow of nanomaterial containing gyrotactic microorganism over a truncated cone.…”

Section: Introductionmentioning

confidence: 99%

Investigation of natural bio-convective flow of Cross nanofluid containing gyrotactic microorganisms subject to activation energy and magnetic field

2020

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The aim of current communication is to investigate the flow features of Cross nanomaterial over stretched porous surface subject to activation energy and magnetic field. The idea of gyrotactic microorganisms is used to stabilize the nanoparticles in Cross fluid. Temperature relation is modeled considering thermal radiation and viscous dissipation. Furthermore, Bio-convection through mutual effects of thermophoresis and Brownian diffusion is also considered. Boundary layer assumptions are used to obtain the flow expressions. The obtained flow expressions are transformed into non-dimensional one using similarity transformations. Newton built in shooting technique code in Mathematica software is implemented to study the impact of potential parameters on velocity, temperature, concentration and concentration of microorganisms. Numerical computations for physical quantities such as skin friction, Nusselt, Sherwood and density numbers are also discussed. Important observations are highlighted at the end.

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“…Shen et al [8] studied analytically bioconvective nanofluid flow carrying motile microorganisms across a stretched surface with radiation and velocity slip impacts by employing HAM. Kumar et al [9] analyzed the unsteady bioconvective nanofluid flow with slip velocity, thermophoresis, and Brownian effects by employing the Keller-box method. Zhao et al [10] explored an electrically conducting unsteady mixed bioconvection fluid flow between two plates.…”

Section: Introductionmentioning

confidence: 99%

Bioconvection Unsteady Magnetized Flow in a Horizontal Channel with Dufour and Soret Effects

Hussain

Farooq

Bano

et al. 2022

Mathematical Problems in Engineering

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In the current decade, bioconvection phenomenon has received a lot of attention in research because of its applications in the biological polymer synthesis, biosensors and biotechnology, pharmaceutical industry, microbial enhanced oil recovery, environmentally friendly applications, and continuous refinements in mathematical modeling. Therefore, this article is prepared to address the unsteady mixed bioconvection in electrically conducting fluid flow between two infinite parallel plates with magnetic field and first-order chemical reaction impacts. Furthermore, the heat and mass transfer study has taken Dufour and Soret effects into account. The nonlinear coupled systems representing the continuity, momentum, energy, mass diffusion, and microorganisms’ equations are renewed into an ordinary differential equation (ODE) by employing the similarity renovation. The renovated ODEs are interpreted by the Homotopy Analysis Method (HAM). Impacts of the different emerging parameters, namely, magnetic field parameter ( M ), heat generation parameter ( Q ), Dufour number ( D u ), Soret number ( S r ), Schmidt number ( S c ), chemical reaction parameter ( K 0 ), Prandtl number ( P r ), squeezing parameter ( β ), Peclet number ( P e ), and Lewis number ( L e ) on the dimensionless velocity, temperature, concentration, and microorganism profiles as well as the frictional drag, Nusselt number, Sherwood number, and microorganisms mass flux are presented. The main outcomes of this investigation are that the velocity profile rises as the squeezing parameter is increased, and clear enhancement is noticed in the temperature profile for augmented estimations of chemical reaction, heat generation/absorption, and Dufour parameters. There is a significant downward trend in the concentration profile and microorganism density for elevated values of Dufour and Soret parameters.

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Numerical modeling of time-dependent bio-convective stagnation flow of a nanofluid in slip regime

Cited by 40 publications

References 46 publications

Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Chemically reactive bioconvection flow of tangent hyperbolic nanoliquid with gyrotactic microorganisms and nonlinear thermal radiation

Investigation of natural bio-convective flow of Cross nanofluid containing gyrotactic microorganisms subject to activation energy and magnetic field

Bioconvection Unsteady Magnetized Flow in a Horizontal Channel with Dufour and Soret Effects

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