43 citations · 170 across the 12 of their papers we have counts for
12 papers
Viscoplasticity can stabilise liquid collar motion on vertical cylinders
James D. Shemilt, Alice B. Thompson, Alex Horsley +2
Liquid films coating vertical cylinders can form annular liquid collars which translate downwards under gravity. We investigate the dynamics of a thin viscoplastic liquid film coat…
Using data collected from structured light plethysmography to differentiate breathing pattern disorder from normal breathing: A study group report
Bindi S. Brook, Mathew Bulpett, Robin Curnow +5
This report relates to a study group hosted by the EPSRC funded network, Integrating data-driven BIOphysical models into REspiratory MEdicine (BIOREME), and supported by SofTMech a…
Non-local impact of distal airway constrictions on patterns of inhaled particle deposition
James D. Shemilt, Alex Horsley, Jim M. Wild +3
Airway constriction and blockage in obstructive lung diseases cause ventilation heterogeneity and create barriers to effective drug deposition. Established computational particle-d…
Correction and standardisation of lung oscillometry techniques using parameter inference: A study group report
Bindi S. Brook, Graeham R. Douglas, Oliver E. Jensen +7
This report relates to a study group hosted by the EPSRC funded network, Integrating data-driven BIOphysical models into REspiratory MEdicine (BIOREME), and supported by The Insign…
Surfactant amplifies yield-stress effects in the capillary instability of a film coating a tube
James D. Shemilt, Alex Horsley, Oliver E. Jensen +2
To assess how the presence of surfactant in lung airways alters the flow of mucus that leads to plug formation and airway closure, we investigate the effect of insoluble surfactant…
Modelling the impact of repeat asymptomatic testing policies for staff on SARS-CoV-2 transmission potential
Carl A Whitfield, University of Manchester COVID-19 Modelling Group, Ian Hall
Repeat asymptomatic testing in order to identify and quarantine infectious individuals has become a widely-used intervention to control SARS-CoV-2 transmission. In some workplaces,…
Surface-tension-driven evolution of a viscoplastic liquid coating the interior of a cylindrical tube
James Shemilt, Alexander Horsley, Oliver Jensen +2
One mechanism for airway closure in the lung is the surface-tension-driven instability of the mucus layer which lines the airway wall. We study the instability of an axisymmetric l…
Stable and Unstable Vortex Knots in Excitable Media
Jack Binysh, Carl A. Whitfield, Gareth P. Alexander
We study the dynamics of knotted vortices in a bulk excitable medium using the FitzHugh-Nagumo model. From a systematic survey of all knots of at most eight crossings we establish…
Hydrodynamic instabilities in active cholesteric liquid crystals
Carl A. Whitfield, Tapan Chandra Adhyapak, Adriano Tiribocchi +3
We describe the basic properties and consequences of introducing active stresses, with principal direction along the local director, in cholesteric liquid crystals. The helical gro…
Instabilities, motion and deformation of active fluid droplets
Carl A. Whitfield, Rhoda J. Hawkins
We consider two minimal models of active fluid droplets that exhibit complex dynamics including steady motion, deformation, rotation and oscillating motion. First we consider a dro…
Immersed Boundary Simulations of Active Fluid Droplets
Carl A. Whitfield, Rhoda J. Hawkins
We present numerical simulations of active fluid droplets immersed in an external fluid in 2-dimensions { using} an Immersed Boundary method to simulate the fluid droplet interface…
Active polar fluid flow in finite droplets
Carl A. Whitfield, Davide Marenduzzo, Raphaël Voituriez +1
We present a continuum level analytical model of a droplet of active contractile fluid consisting of filaments and motors. We calculate the steady state flows that result from a sp…