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Solar energy aspects of gyrotactic mixed bioconvection flow of nanofluid past a vertical thin moving needle influenced by variable Prandtl number

Ying-Qing Song, Aamir Hamid, M. Ijaz Khan, R.J. Punith Gowda, R. Naveen Kumar, B.C. Prasannakumara, Sami Ullah Khan, M. Imran Khan and M.Y. Malik

Chaos, Solitons & Fractals, 2021, vol. 151, issue C

Abstract: The current analysis deals with the nanofluid flow over a vertical thin needle having gyrotactic microorganisms. Further, the incompressible liquid is electrically conducted in the existence of magnetic field. The important effect of thermophoresis and Brownian motion has been involved in the model of nanofluid. The system of dimensionless form of ordinary differential equations (ODE's) are obtained by applying appropriate transformations to the formulated problem defined by the system of partial differential equations (PDE's). Later, these reduced ODE's are tackled numerically by using Runge–Kutta-based shooting process. Finally, keeping in view of physical significance of flow parameters, the graphical analysis for prominent parameters is portrayed and discussed in detail. The outcome exposed that the velocity gradient reduces for rising values of magnetic and buoyancy ratio parameter. The upsurge in Biot number and radiation parameter enhances the heat passage. The motile microorganisms density number improves for growing values of Lewis number and declines for improved values of Peclet number.

Keywords: Nanofluid; MHD; Thermal radiation; Moving thin needle; Bioconvection; Gyrotactic microorganisms (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:151:y:2021:i:c:s0960077921005981

DOI: 10.1016/j.chaos.2021.111244

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