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Gravity-driven soap film dynamics in subcritical regimes.

We undertake the analysis of soap-film dynamics with the classical approach of asymptotic expansions. We focus our analysis in vertical soap film tunnels operating in subcritical regimes with elastic Mach numbers M(e)=O((10(-1))). Considering the associated set of nondimensional numbers that charact... Full description

Journal Title: Physical review. E Statistical, nonlinear, and soft matter physics, October 2015, Vol.92(4), p.043009
Main Author: Auliel, M I
Other Authors: Castro, F , Sosa, R , Artana, G
Format: Electronic Article Electronic Article
Language: English
ID: E-ISSN: 1550-2376 ; DOI: 10.1103/PhysRevE.92.043009
Link: http://search.proquest.com/docview/1747324803/?pq-origsite=primo
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title: Gravity-driven soap film dynamics in subcritical regimes.
format: Article
creator:
  • Auliel, M I
  • Castro, F
  • Sosa, R
  • Artana, G
ispartof: Physical review. E, Statistical, nonlinear, and soft matter physics, October 2015, Vol.92(4), p.043009
description: We undertake the analysis of soap-film dynamics with the classical approach of asymptotic expansions. We focus our analysis in vertical soap film tunnels operating in subcritical regimes with elastic Mach numbers M(e)=O((10(-1))). Considering the associated set of nondimensional numbers that characterize this flow, we show that the flow behaves as a two-dimensional (2D) divergence free flow with variable mass density. When the soap film dynamics agrees with that of a 2D and almost constant mass density flow, the regions where the second invariant of the velocity gradient is non-null correspond to regions where the rate of change of film thickness is non-negligible.
language: eng
source:
identifier: E-ISSN: 1550-2376 ; DOI: 10.1103/PhysRevE.92.043009
fulltext: fulltext
issn:
  • 15502376
  • 1550-2376
url: Link


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descriptionWe undertake the analysis of soap-film dynamics with the classical approach of asymptotic expansions. We focus our analysis in vertical soap film tunnels operating in subcritical regimes with elastic Mach numbers M(e)=O((10(-1))). Considering the associated set of nondimensional numbers that characterize this flow, we show that the flow behaves as a two-dimensional (2D) divergence free flow with variable mass density. When the soap film dynamics agrees with that of a 2D and almost constant mass density flow, the regions where the second invariant of the velocity gradient is non-null correspond to regions where the rate of change of film thickness is non-negligible.
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