• Capillary elastic instabilities with applications to airway closure
• Thin film instabilities and pattern formation
• Surfactant spreading in thin liquid layers
• Airway reopening mechanics
• Evolution of gas bubbles in the circulation with applications to the bends
• Motion of red blood cells in the microcirculation
• Gas dispersion

Motion of red blood cells in the microcirculation

Halpern, D. and Secomb, T.W. The squeezing of red blood cells through capillaries with near-minimal diameters. J. Fluid Mech. 203: 381-400, 1989.
Halpern, D. and Secomb, T.W. Viscous motion of disc-shaped particles through parallel-sided channels with near-minimal widths. J. Fluid Mech. 231: 545-560, 1991.
Halpern, D. and Secomb, T.W. The squeezing of red blood cells through parallel-sided channels with near-minimal widths. J. Fluid Mech. 244: 307-322, 1992.