Experimental growth law for bubbles in a "wet" 3D liquid foam
Abstract
We used X-ray tomography to characterize the geometry of all bubbles in a liquid foam of average liquid fraction φl≈ 17 % and to follow their evolution, measuring the normalized growth rate G=V-1/3dV 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 Gf f-f0 for large fs at all times. We discuss the dispersion of G and the influence of V on G.
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