MHD Nanofluid Bioconvection over an Exponentially Stretching Sheet in the Presence of Gyrotactic Microorganisms and Thermal Radiation

Pal, Dulal; Mondal, Surya Kanta

doi:10.1007/s12668-017-0474-3

Cited by 43 publications

(11 citation statements)

References 30 publications

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“…Ayodeji et al [35] explored the flow of nanofluid by bioconvection MHD via a flexible surface with velocity slip and viscous dissipation. Pal et al [36] analyzed the influence of thermal radiation and gyrotactic microorganisms through an exponentially stretchable sheet in the presence of bioconvection MHD nanofluids. The bioconvection flow of visco-elastic nanofluids with magnetic motile and dipole microorganisms was examined by Alshomrani [37].…”

Section: Introductionmentioning

confidence: 99%

Impact of Bioconvection and Chemical Reaction on MHD Nanofluid Flow Due to Exponential Stretching Sheet

et al. 2021

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Thermal management is a crucial task in the present era of miniatures and other gadgets of compact heat density. This communication presents the momentum and thermal transportation of nanofluid flow over a sheet that stretches exponentially. The fluid moves through a porous matrix in the presence of a magnetic field that is perpendicular to the flow direction. To achieve the main objective of efficient thermal transportation with increased thermal conductivity, the possible settling of nano entities is avoided with the bioconvection of microorganisms. Furthermore, thermal radiation, heat source dissipation, and activation energy are also considered. The formulation in the form of a partial differential equation is transmuted into an ordinary differential form with the implementation of appropriate similarity variables. Numerical treatment involving Runge–Kutta along with the shooting technique method was chosen to resolve the boundary values problem. To elucidate the physical insights of the problem, computational code was run for suitable ranges of the involved parameters. The fluid temperature directly rose with the buoyancy ratio parameter, Rayleigh number, Brownian motion parameter, and thermophoresis parameter. Thus, thermal transportation enhances with the inclusion of nano entities and the bioconvection of microorganisms. The findings are useful for heat exchangers working in various technological processors. The validation of the obtained results is also assured through comparison with the existing result. The satisfactory concurrence was also observed while comparing the present symmetrical results with the existing literature.

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Section: Introductionmentioning

confidence: 99%

Impact of Bioconvection and Chemical Reaction on MHD Nanofluid Flow Due to Exponential Stretching Sheet

et al. 2021

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“…In this context, Davidson, 32 Steg and Sutton 33 presented several applications appearing in the various fields of medical and engineering as well due to which MHD has grown the consideration of scientist. Hayat et al, 34 Pal and Mondal 35 examined the impact of MHD and heat (source/sink) on 3D water based nanofluid flow. Interesting results of nanofluid flow through stretching surface in the presence of MHD and thermal radiation were communicated by Ramzan et al 36 Furthermore, additional interesting and recent studies on MHD and RK-4 method can be seen in Arqub and Rashaideh, 37 Arqub, 38 and Momani et al 39 Having inspired from the above mention perceptions, in this work we have represented the consequence of MHD on unsteady flow of nanofluids over a rotating frame.…”

Section: Introductionmentioning

confidence: 99%

Magneto hydrodynamic and dissipated nanofluid flow over an unsteady turning disk

Gul

Usman

Khan

et al. 2021

Advances in Mechanical Engineering

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A modern development in the field of fluid dynamics emphasizes on nanofluids which maintain remarkable thermal conductivity properties and intensify the transport features of heat in fluids. The present communication provides an innovative idea of MHD (magneto-hydrodynamics) unsteady, incompressible nanoliquid flow due to the stretching rotating disk with the effect of Joule heating and dissipation. The engine oil is used as a carrier fluid for an immersed rotating disk. A special type of nanoliquid, which consists of cylindrical shape nano materials CNTs (Carbon Nanotubes), is being taken into an account. The CNTs are assembled of both single and multi-walled carbon nanotubes. Some other factors such as the effect of joule heating and viscus dispassion are also used in this investigation. The foremost set of PDEs (Partial Differential Equations) of our model is reformed to the dimensionless form via invoking suitable variables. The resultant set of equations is sketched out through RK-4 method. Furthermore, the velocity profile and energy distribution versus dimensionless flow factors have been sketched and discussed. Also, the outcomes of important engineering curiosity like Nusselt number and skin friction are depicted and interpreted by taking various model factors. Radial and transverse velocity fields, declines via [Formula: see text] (magnetic factor), while the temperature field enhances. Furthermore, the larger estimation of [Formula: see text] leads to enhance the velocity field while higher estimation of [Formula: see text] reducing the velocity and temperature fields. The current work has an extensive verity use such as nano-mechanics and electro-magnetic micro pumps.

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“…Furthermore, the bioconvective phenomenon of nanoparticles is also referred to in many applications in biosciences like enzymes, biosensors, biofuels, and so on. The first time Bioconvection was introduced was by Wager et al 10 and Platt et al 11 Bioconvection enhances the rate of mass transfer and the solidity of nanofluid in the flow as discussed by Pal et al 12 Waqas et al 13 measured the bioconvection stream in the presence of heat absorption/generation effects on improved second‐grade nanofluid. Hayat et al 14 discussed the progress of gyrotactic microorganisms with MHD including nanofluid flow.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear magnetohydrodynamic flow of nanofluids across a porous matrix over an extending sheet with mass transpiration and bioconvection

et al. 2021

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The consequences of the nonlinear magnetic field and radiative thermal energy are evaluated for bioconvective viscous flow across a porous matrix over a nonlinearly stretching sheet. The rationale of the study is to attain enhanced thermal transportation. The dilute dispersion of nanoentities and bioconvection of swimming microorganisms are taken into consideration. The coupled partial differential system of field equations is transformed into ordinary differential form. Finally, the numeric solution is obtained by utilizing the fourth‐order Runge–Kutta method shooting technique, and results are validated through an acceptable accord with existing studies. The variation of influential parameters such as combined magnetic parameter, mass transpiration parameter, thermophoresis, Brownian motion, bioconvection Lewis numbers made notable impacts on fluid velocity, temperature, concentration of nanoentities, and distribution of microorganisms.

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MHD Nanofluid Bioconvection over an Exponentially Stretching Sheet in the Presence of Gyrotactic Microorganisms and Thermal Radiation

Cited by 43 publications

References 30 publications

Impact of Bioconvection and Chemical Reaction on MHD Nanofluid Flow Due to Exponential Stretching Sheet

Impact of Bioconvection and Chemical Reaction on MHD Nanofluid Flow Due to Exponential Stretching Sheet

Magneto hydrodynamic and dissipated nanofluid flow over an unsteady turning disk

Nonlinear magnetohydrodynamic flow of nanofluids across a porous matrix over an extending sheet with mass transpiration and bioconvection

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