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Using Surface Evolver to measure pressures and energies of real 2D foams submitted to quasi-static deformations

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  • معلومة اضافية
    • Contributors:
      Laboratoire Univers et Théories (LUTH (UMR_8102)); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS); Institut de Physique de Rennes (IPR); Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS); Région Bretagne
    • بيانات النشر:
      HAL CCSD
      Elsevier
    • الموضوع:
      2015
    • Collection:
      Archive de l'Observatoire de Paris (HAL)
    • نبذة مختصرة :
      International audience ; Static 2D foams have the interesting property that their energy is measurable by summing up the length of their films, so that a simple optical picture of a 2D foam should enable measurement of its energy and other quantities such as its bubbles’ pressures. This operation is of course unrealizable in most experiments since the optical resolution limits the accuracy of length measurements. Here we show that, using image analysis tools alongside an iterative procedure based on the Surface Evolver (Brakke, 1992) to analyze optical images of a 2D foam, we are able to measure accurately its energy and its bubbles’ pressures up to a single multiplying factor. We determine this factor, and validate this procedure, by comparing experimental measurements of the pressure and the work done on a 2D foam experiencing a quasi-static localized deformation with the energy and pressures computed using our procedure.
    • Relation:
      hal-01123944; https://hal.science/hal-01123944; https://hal.science/hal-01123944/document; https://hal.science/hal-01123944/file/article_COLSUA_NOVEMBRE_2014.pdf
    • الرقم المعرف:
      10.1016/j.colsurfa.2014.12.002
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.5286B8A9