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Mechanical probing of liquid foam ageing

Abstract : We 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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Submitted on : Wednesday, May 2, 2012 - 10:49:29 AM
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Isabelle Cantat, Olivier Pitois. Mechanical probing of liquid foam ageing. Journal of Physics: Condensed Matter, IOP Publishing, 2005, 17 (45), pp.S3455--S3461. ⟨10.1088/0953-8984/17/45/034⟩. ⟨hal-00693196⟩



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