BEYSENS, Daniel; GARRABOS, Yves; CHATAIN, Denis; EVESQUE, Pierre

doi:10.1209/0295-5075/86/16003

Metadatos

Licencia de uso del documento

BEYSENS, Daniel
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Physique et mécanique des milieux hétérogènes [PMMH]
ESEME : Équipe du Supercritique pour l'Environnement, les Matériaux et l'Espace : Équipe commune CEA-CNRS (2000-2014)

GARRABOS, Yves
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
ESEME : Équipe du Supercritique pour l'Environnement, les Matériaux et l'Espace : Équipe commune CEA-CNRS (2000-2014)

CHATAIN, Denis
Service des Basses Températures [SBT ]
ESEME : Équipe du Supercritique pour l'Environnement, les Matériaux et l'Espace : Équipe commune CEA-CNRS (2000-2014)

Idioma

Article de revue

Este ítem está publicado en

EPL - Europhysics Letters. 2009, vol. 89, n° 1, p. 16003 (6 p.)

European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing

Resumen en inglés

Phase separation is investigated in CO<sub>2</sub> under linear harmonic vibrations. The study is performed under weightlessness in a sounding rocket. The fluid is at critical density near its critical point to get benefit from universal behavior. Without vibration, phase separation is characterized by an interconnected pattern of vapor and liquid domains and a near linear growth law. Under vibration, three time regions have been identified. i) When the liquid-vapor domains are smaller than a few viscous boundary layer thickness, growth is unaffected by vibration. ii) Then the Bernoulli pressure across the interfaces makes the domains grow exponentially perpendicularly to the vibration direction while growth parallel to the vibration direction is unaffected. iii) When the domains reach the sample size, the pattern looks as periodic stripes perpendicular to the vibration direction and keep on growing parallel to the vibration direction. A theoretical approach of these phenomena is proposed.< Leer menos

Palabras clave

Phases transitions

Liquid vapor transitions

Critical phenomena

Metadatos

Licencia de uso del documento

Phase transition under forced vibrations in critical CO<sub>2</sub>

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave

DOI

Orígen

Centros de investigación