Thermo-Bioconvection in Nanoliquid Suspension Saturated with Thermotactic Microorganisms

This study primarily focuses on the analytical investigation of thermal-bioconvection in the nanoliquid layer confined between two horizontal parallel walls. Bioconvection is considered to be driven by thermotactic microorganisms. Flow governing equations are modeled using Buongiorno’s model and mic...

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Bibliographic Details
Published in:Forces in mechanics 2022-12, Vol.9, p.100128, Article 100128
Main Authors: Bisht, Ankita, Maheshwari, Sanjalee
Format: Article
Language:English
Subjects:
Bioconvection
Linear stability analysis
Nanoliquid
Normal mode analysis
Thermotactic microorganisms
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Summary:This study primarily focuses on the analytical investigation of thermal-bioconvection in the nanoliquid layer confined between two horizontal parallel walls. Bioconvection is considered to be driven by thermotactic microorganisms. Flow governing equations are modeled using Buongiorno’s model and microorganism concentration equations are modeled using Pedley’s model. The Eigenvalue problem, obtained by Normal mode analysis, is solved by the weighted residual Galerkin method using trigonometric trial functions. It is observed that the presence of nanoparticles and fast swimmers has destabilized the system since the convection is occurring from top to bottom. Moreover, the system is becoming more stable with the decrease in the diffusivity of the cells.
ISSN:2666-3597
2666-3597
DOI:10.1016/j.finmec.2022.100128