Mechanical probing of liquid foam ageingJournal of Physics: Condensed Matter, Vol. 17, No. 45. (2005), pp. S3455-S3461.
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AbstractWe present experimental results on the Stokes experiment performed in a 3D dry liquid foam. The system is used as a rheometric tool: from the force exerted on a 1~cm glass bead, plunged at controlled velocity in the foam in a quasi-static regime, local foam properties are probed around the sphere. With this original and simple technique, we show the possibility of measuring the foam shear modulus, the gravity drainage rate and the evolution of the bubble size during coarsening.
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