Journal article
The equation of state of a foam
Physics of fluids (1994), v 12(1)
Jan 2000
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The equation of state of a dry foam with ideal gas in the bubbles, proposed by Ross, is proved. This equation suggests that a foam with a free boundary will expand to a maximum volume if the external pressure is lowered at constant temperature. The same foam enclosed in a container, on the other hand, can be expanded further but, as the volume is increased, will eventually become unstable. We speculate that this instability leads to a “bubble differentiation” transition of the kind observed by Herdtle in numerical simulations of two-dimensional foam with ideal gas in the bubbles. In the simulations the foam separated into two “phases,” one with a large number of small bubbles, another with a small number of very large bubbles.
Metrics
Details
- Title
- The equation of state of a foam
- Creators
- Hassan Aref - University of Illinois Urbana-ChampaignDmitri L. Vainchtein - University of Illinois Urbana-Champaign
- Publication Details
- Physics of fluids (1994), v 12(1)
- Publisher
- American Institute of Physics (AIP)
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- C. and J. Nyheim Plasma Institute
- Web of Science ID
- WOS:000084049000003
- Scopus ID
- 2-s2.0-0034085601
- Other Identifier
- 991021861826504721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Mechanics
- Physics, Fluids & Plasmas