The term “bioconvection” describes hydrodynamic instabilities and patterns in suspensions
of biased swimming microorganisms. Hydrodynamic instabilities arise from coupling …

The persistent motility of individual constituents in microbial suspensions represents a prime
example of the so-called active matter systems. Cells consume energy, exert forces and …

The linear stability of a suspension of phototactic algae is investigated numerically with
particular emphasis on the effects of angle of incidence of the illuminating oblique collimated …

The objective of this paper is mainly to investigate the combined effect of diffuse and oblique
collimated flux on the onset of phototactic bioconvection. The onset of phototactic …

The ability of many photosynthetic micro-organisms (algae) to detect a localized light source
in their environment and move toward (away from) it is known as positive (negative) …

In this article, we investigate a phototactic bioconvection model that includes both absorption
and isotropic scattering in the suspension with the top and bottom boundaries assumed to …

The phenomenon of collective movements of microorganisms is referred to as
“bioconvection.” Negative phototaxis refers to motions directed away from the source of …

Microorganismal motility is often characterized by complex responses to environmental
physico-chemical stimuli. Although the biological basis of these responses is often not well …

In this paper, a comprehensive numerical simulation of coupled natural convection with
diffuse and collimated beam irradiation has been performed in a cubic cavity. The cavity is …

The main objective of this paper is to investigate the impact of diffuse/scattered flux in the
absence of collimated flux on the stability of an isotropic scattering algal suspension. The …