Speaker
Description
The non-axisymmetric chiral squirmer [1], implemented within a Lattice Boltzmann code tailored for complex fluid dynamics [2], serves as a versatile tool to study the emergent behavior of microswimmer suspensions. Utilizing this model, we delve into the characterization of interactions between pairs of squirmers and explore their behavior in proximity to solid walls, as well as within the context of active chiral suspensions.
Our study encompasses a diverse spectrum of scenarios, ranging from individual interactions to more complex systems such as run-and-tumble dynamics, monolayers of rotors and rollers on walls, and beyond. By leveraging the capabilities of our computational framework, which solves the Stokes equations to accurately capture the hydrodynamics of active microswimmer suspensions, we gain insights into the intricate interplay of hydrodynamic forces, chirality, and confinement effects. Through systematic simulations and analysis, we elucidate the mechanisms governing the interaction dynamics between non-axisymmetric chiral squirmers, unveiling emergent collective behaviors and patterns. Moreover, we investigate the influence of solid interfaces on the motion and orientation of squirmers, providing valuable insights into boundary effects in active suspensions. Furthermore, our study extends to the realm of active chiral suspensions, where we explore the collective behavior and rheological properties of these systems. By characterizing the response of chiral squirmers to external stimuli and confinement, we contribute to a deeper understanding of the rich dynamics exhibited by active fluids. In summary, our research advances the understanding of non-axisymmetric chiral squirmers in complex fluid environments, offering valuable insights into their interactions, behavior near solid interfaces, and implications for active chiral suspensions. These findings pave the way for future studies aimed at harnessing and controlling the dynamics of active microswimmers for various applications in fields such as microfluidics, biomedicine, and soft robotics.
