Recent developments in applied mathematics and mechanics: theory, experiment and practice. Devoted to the 80th anniversary of academician N.N.Yanenko

Akademgorodok, Novosibirsk, Russia, June 24 - 29, 2001

Abstracts

Siberian participants

Foam formation and flow in porous structures

Akhmetov A.T., Amel'kin S.V., Shnaider A.V.

Institute of theoretical and applied mechanics SB RAS,
tyumen department (Tyumen)

Research was carried out with use of transparent two-dimensional micromodel of porous structure. The process of foam formation, velocity and a form of a displacement front, hydrodynamic resistance of a model with foam, foam quality and foam evolution at the flow in porous structure at a given pressure difference were studied. The following was established:
1) Foam is formed due to viscous instability at displacement of solution by gas;
2) Foam within porous structure has rheopexy property;
3) Instability of foam flow takes place at some pressure difference;
4) There is the critical pressure difference for the displacement of foam by water.

Note. Abstracts are published in author's edition

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