TY - JOUR
T1 - Hydrodynamic boundary conditions and dynamic forces between bubbles and surfaces
AU - Manor, Ofer
AU - Vakarelski, Ivan Uriev
AU - Tang, Xiaosong
AU - O'Shea, Sean J.
AU - Stevens, Geoffrey W.
AU - Grieser, Franz
AU - Dagastine, Raymond R.
AU - Chan, Derek Y C
PY - 2008/7/11
Y1 - 2008/7/11
N2 - Dynamic forces between a 50μm radius bubble driven towards and from a mica plate using an atomic force microscope in electrolyte and in surfactant exhibit different hydrodynamic boundary conditions at the bubble surface. In added surfactant, the forces are consistent with the no-slip boundary condition at the mica and bubble surfaces. With no surfactant, a new boundary condition that accounts for the transport of trace surface impurities explains variations of dynamic forces at different speeds and provides a direct connection between dynamic forces and surface transport effects at the air-water interface.
AB - Dynamic forces between a 50μm radius bubble driven towards and from a mica plate using an atomic force microscope in electrolyte and in surfactant exhibit different hydrodynamic boundary conditions at the bubble surface. In added surfactant, the forces are consistent with the no-slip boundary condition at the mica and bubble surfaces. With no surfactant, a new boundary condition that accounts for the transport of trace surface impurities explains variations of dynamic forces at different speeds and provides a direct connection between dynamic forces and surface transport effects at the air-water interface.
UR - http://www.scopus.com/inward/record.url?scp=48249113329&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.101.024501
DO - 10.1103/PhysRevLett.101.024501
M3 - Article
C2 - 18764184
AN - SCOPUS:48249113329
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 2
M1 - 024501
ER -