Experimental growth law for bubbles in a moderately "wet" 3D liquid foam.
We used x-ray tomography to characterize the geometry of all bubbles in a liquid foam of average liquid fraction phi(l) approximately 17% and to follow their evolution, measuring the normalized growth rate G=V(-1/3) dV/dt for 7000 bubbles. While G does not depend only on the number of faces of a bubble, its average over f-faced bubbles scales as G(f) approximately f - f(0) for large f's at all times. We discuss the dispersion of G and the influence of V and phi(l) on G.
Lambert
Jérôme
J
G.M.C.M. Université Rennes 1, CNRS UMR 6626, Bâtiment 11A, Campus Beaulieu 35042 Rennes Cedex, France.
Cantat
Isabelle
I
Delannay
Renaud
R
Mokso
Rajmund
R
Cloetens
Peter
P
Glazier
James A
JA
Graner
François
F