136 citations · 499 across the 18 of their papers we have counts for
18 papers
Solutocapillary bubble centering in a confined ethanol plume in water
Tobias Baier, Steffen Bisswanger, Sebastian Dehe +1
This study investigates the radial centering of gas bubbles within a buoyant plume of ethanol injected into a co-flowing water sheath flow in a vertical capillary. Bubbles nucleate…
Upstream motion of oil droplets in co-axial Ouzo flow due to Marangoni forces
Steffen Bisswanger, Duarte Rocha, Sebastian Dehe +4
To explore the physicochemical hydrodynamics of phase-separating ternary liquids (Ouzo-type), a binary oil-ethanol mixture is introduced into a co-flowing stream of water. Oil drop…
The influence of incompressible surfactant on drag in flow along an array of gas-filled grooves
Tobias Baier
Surfactants can have a detrimental effect on the drag reduction in shear flow over superhydrophobic surfaces in Cassie state. While surfactant-free gas-liquid interfaces are often…
Shear flow over a surface containing a groove covered by an incompressible surfactant phase
Tobias Baier, Steffen Hardt
We study shear-driven liquid flow over a planar surface with an embedded gas-filled groove, with the gas-liquid interface protruding slightly above or below the planar surface. The…
Thermophoresis of Janus particles at large Knudsen numbers
Tobias Baier, Sudarshan Tiwari, Samir Shrestha +2
The force and torque on a Janus sphere moving in a rarefied gas with a thermal gradient are calculated. The regime of large Knudsen number is considered, with the momenta of imping…
Knudsen pump inspired by Crookes radiometer with a specular wall
Tobias Baier, Steffen Hardt, Vahid Shahabi +1
A rarefied gas is considered in a channel consisting of two infinite parallel plates between which an evenly spaced array of smaller plates is arranged normal to the channel direct…