Instabilities in foam clusters related to the pressures in the bubbles |
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| Authors: | MF Vaz MA Fortes |
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| Institution: | (1) ICEMS - Instituto de Ciência e Engenharia de Materiais e Superfıcies and Departamento de Engenharia de Materiais, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisboa, Portugal, PT |
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| Abstract: | We reinterpret an instability in a two-dimensional free foam cluster previously discussed by Weaire et al. (Eur. Phys. J. E 7, 123 (2002)) in terms of the excess pressure in the bubbles. We conclude that in a free foam cluster no bubble can have a
pressure below that of the surrounding gas.
Received: 20 September 2002 / Accepted: 5 May 2003 / Published online: 27 May 2003
RID="a"
ID="a"e-mail: fatima.vaz@ist.utl.pt |
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| Keywords: | PACS 82 70 Rr Aerosols and foams |
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