TY - JOUR
T1 - Noncontinuous Froude Number Scaling for the Closure Depth of a Cylindrical Cavity
AU - Gekle, Stephan
AU - van der Bos, Arjan
AU - Bergmann, Raymond
AU - van der Meer, Deveraj
AU - Lohse, Detlef
PY - 2008
Y1 - 2008
N2 - A long, smooth cylinder is dragged through a water surface to create a cavity with an initially cylindrical shape. This surface void then collapses due to the hydrostatic pressure, leading to a rapid and axisymmetric pinch-off in a single point. Surprisingly, the depth at which this pinch-off takes place does not follow the expected Froude1/3 power law. Instead, it displays two distinct scaling regimes separated by discrete jumps, both in experiment and in numerical simulations (employing a boundary integral code). We quantitatively explain the above behavior as a capillary wave effect. These waves are created when the top of the cylinder passes the water surface. Our work thus gives further evidence for the nonuniversality of the void collapse.
AB - A long, smooth cylinder is dragged through a water surface to create a cavity with an initially cylindrical shape. This surface void then collapses due to the hydrostatic pressure, leading to a rapid and axisymmetric pinch-off in a single point. Surprisingly, the depth at which this pinch-off takes place does not follow the expected Froude1/3 power law. Instead, it displays two distinct scaling regimes separated by discrete jumps, both in experiment and in numerical simulations (employing a boundary integral code). We quantitatively explain the above behavior as a capillary wave effect. These waves are created when the top of the cylinder passes the water surface. Our work thus gives further evidence for the nonuniversality of the void collapse.
U2 - 10.1103/PhysRevLett.100.084502
DO - 10.1103/PhysRevLett.100.084502
M3 - Article
SN - 0031-9007
VL - 100
JO - Physical review letters
JF - Physical review letters
IS - 8
M1 - 084502
ER -