6 papers
Regularised non-uniform segments and efficient no-slip elastohydrodynamics
Benjamin J. Walker, Eamonn A. Gaffney
The elastohydrodynamics of slender bodies in a viscous fluid have long been the source of theoretical investigation, being pertinent to the microscale world of ciliates and flagell…
Efficient simulation of filament elastohydrodynamics in three dimensions
Benjamin J. Walker, Kenta Ishimoto, Eamonn A. Gaffney
Fluid-structure simulations of slender inextensible filaments in a viscous fluid are often plagued by numerical stiffness. Recent coarse-graining studies have reduced the computati…
The pairwise hydrodynamic interactions of synchronized spermatozoa
Benjamin J. Walker, Kenta Ishimoto, Eamonn A. Gaffney
The journey of mammalian spermatozoa in nature is well-known to be reliant on their individual motility. Often swimming in crowded microenvironments, the progress of any single swi…
Filament mechanics in a half-space via regularised Stokeslet segments
Benjamin J. Walker, Kenta Ishimoto, Hermes Gadêlha +1
We present a generalisation of efficient numerical frameworks for modelling fluid-filament interactions via the discretisation of a recently-developed, non-local integral equation…
Automated identification of flagella from videomicroscopy via the medial axis transform
Benjamin J. Walker, Kenta Ishimoto, Richard J. Wheeler
Ubiquitous in eukaryotic organisms, the flagellum is a well-studied organelle that is well-known to be responsible for motility in a variety of organisms. Commonly necessitated in…
Boundary behaviours of Leishmania mexicana: a hydrodynamic simulation study
Benjamin J. Walker, Richard J. Wheeler, Kenta Ishimoto +1
It is well established that the parasites of the genus Leishmania exhibit complex surface interactions with the sandfly vector midgut epithelium, but no prior study has considered…