2 papers
physics.flu-dyn2026
Stability and nonlinear dynamics of three-layer viscous films inside a vertical cylindrical tube
David Halpern, Awa Traore
We investigate the dynamics and stability of three immiscible viscous liquid layers coating the interior of a vertical cylindrical tube, a configuration relevant to stratified core…
physics.flu-dyn2025
Moving contact lines of power-law fluids: How nonlinear fluid rheology drastically alters stress singularity and dynamic wetting behavior
David Halpern, Hsien-Hung Wei
Power-law fluids can strongly affect the degree of the contact line stress singularity and hence the nature of moving contact lines. We develop a framework beyond the classical par…