Phototactic bioconvection under oblique collimated irradiation in a forward scattering suspension

2025/06/29 by Ashutosh Rathi, Rathi, A., M. K. Panda +3
Agricultural and Biological Sciences · Computer Science · Physics and Astronomy · #Biocrusts and Microbial Ecology #Biological Physics (physics.bio-ph) #FOS: Physical sciences #Micro and Nano Robotics #Nonlinear Dynamics and Pattern Formation

paper · pdf · doi:10.48550/arxiv.2506.23233

openalex publication_date 2025/06/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Phototaxis, the process by which living organisms navigate toward optimal light conditions, is essential for motile photosynthetic microorganisms. Positive(negative) phototaxis denotes the motion directed towards(away from) the source of illumination. The main objective of this study is the numerical investigation of onset of bioconvection in a suspension of phototactic microorganisms illuminated by oblique collimated irradiation at the top. In this suspension, the algal cells absorb and anisotropically scatter incident light which influences the flow dynamics of the cells.

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