Journal
SCIENCE
Volume 340, Issue 6133, Pages 720-724Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1230623
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Funding
- Applied Mathematical Sciences subprogram of the Office of Energy Research, U.S. Department of Energy [DE-AC02-05CH11231]
- Division of Mathematical Sciences of the NSF
- National Cancer Institute [U54CA143833]
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
- Miller Foundation at University of California, Berkeley
- American Australian Association Sir Keith Murdoch Fellowship
- Direct For Mathematical & Physical Scien
- Division Of Mathematical Sciences [1319276] Funding Source: National Science Foundation
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Modeling the physics of foams and foamlike materials, such as soapy froths, fire retardants, and lightweight crash-absorbent structures, presents challenges, because of the vastly different time and space scales involved. By separating and coupling these disparate scales, we have designed a multiscale framework to model dry foam dynamics. This leads to a predictive and flexible computational methodology linking, with a few simplifying assumptions, foam drainage, rupture, and topological rearrangement, to coupled interface-fluid motion under surface tension, gravity, and incompressible fluid dynamics. Our computed results match theoretical analyses and experimentally observed physical effects, including thin-film drainage and interference, and are used to study bubble rupture cascades and macroscopic rearrangement. The developed multiscale model allows quantitative computation of complex foam evolution phenomena.
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