Thermal fluctuations in the interface of an inhomogeneous fluid

Autor:	Jože Peternelj, Luis de Sobrino
Rok vydání:	1982
Předmět:	Physics Capillary wave Van der Waals equation Condensed matter physics Capillary action Interface (Java) General Physics and Astronomy Thermal fluctuations Partition function (mathematics) Physics::Fluid Dynamics Surface tension symbols.namesake Mean field theory symbols
Zdroj:	Canadian Journal of Physics. 60:137-153
ISSN:	1208-6045 0008-4204
DOI:	10.1139/p82-019
Popis:	We use van Kampen's expression for the partition function of a van der Waals gas to investigate the effect of noncritical fluctuations on the interface of an inhomogeneous fluid. Such a procedure combines in a consistent manner the results of mean field theory and of capillary wave theory and, in addition, uncovers contributions due to fluctuations of the interface profile. Although the latter add negligibly to the interfacial width, they result in corrections to the mean field surface tension comparable to those resulting from capillary fluctuations. The effect of the walls in limiting the fluctuations is explicitly taken into account.
Databáze:	OpenAIRE
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