Double-Diffusive Bioconvection in a Suspension of Gyrotactic Microorganisms Saturated by Nanofluid

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SAINI S.; SHARMA Y.D.

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Paper Information

Journal: JOURNAL OF APPLIED FLUID MECHANICS (JAFM) Year:2019 | Volume:12 | Issue:1 Page(s): 271-280

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Title

Double-Diffusive Bioconvection in a Suspension of Gyrotactic Microorganisms Saturated by Nanofluid

Author(s)

SAINI S. | SHARMA Y.D. | Issue Writer Certificate

Keywords

Bioconvection

Brownian motion

Gyrotactic microorganisms

Nanofluid

Porous medium

Thermophoresis

Abstract

This paper focuses on analytical and numerical investigation of double-diffusive Bioconvection in a porous media saturated by Nanofluid using the modified mass flux condition. Normal mode technique is employed to solve the governing equations of the Brinkman-Darcy model. The Galerkin weighted residual method (single-term and six-term) is used to obtain numerical solution of the mathematical model. It is found that due to the presence of Gyrotactic microorganisms, Rayleigh number is decreased substantially which shows that convection sets in earlier as compared to Nanofluid without microorganisms and this destabilizing effect is more predominant for faster swimming microorganisms. modified Darcy number number, Soret parameter, and porosity postpone the onset of the Bioconvection, whereas nanoparticle Rayleigh number, Bioconvection Rayleigh number, nanoparticle Lewis number, Dufour parameter, Pé clet number, and Lewis number pre-pone the onset of Bioconvection under certain conditions.

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APA: Copy

SAINI, S., & SHARMA, Y.D.. (2019). Double-Diffusive Bioconvection in a Suspension of Gyrotactic Microorganisms Saturated by Nanofluid. JOURNAL OF APPLIED FLUID MECHANICS (JAFM), 12(1), 271-280. SID. https://sid.ir/paper/307869/en

Vancouver: Copy

SAINI S., SHARMA Y.D.. Double-Diffusive Bioconvection in a Suspension of Gyrotactic Microorganisms Saturated by Nanofluid. JOURNAL OF APPLIED FLUID MECHANICS (JAFM)[Internet]. 2019;12(1):271-280. Available from: https://sid.ir/paper/307869/en

IEEE: Copy

S. SAINI, and Y.D. SHARMA, “Double-Diffusive Bioconvection in a Suspension of Gyrotactic Microorganisms Saturated by Nanofluid,” JOURNAL OF APPLIED FLUID MECHANICS (JAFM), vol. 12, no. 1, pp. 271–280, 2019, [Online]. Available: https://sid.ir/paper/307869/en

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