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Yves Garrabos
Centre national de la recherche scientifique
117Publications
16H-index
966Citations
Publications 121
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#1Ana OprisanH-Index: 5
#2G. GandikotaH-Index: 5
Last.Daniel Beysens ('ENS Paris': École Normale Supérieure)H-Index: 12
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Video images are being used with increased frequency in science, supplanting current methods such as light scattering by statistical evaluation of the images. In this study we use light turbidity data due to density-induced refractive index fluctuations to obtain critical amplitudes from image analysis. In order to bring hydrogen (H2) very close to its critical point, we place the sample cell under weightlessness using a magnetic levitation device. Images of an H2-filled cell are taken near its ...
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#1Carole Lecoutre (CNRS: Centre national de la recherche scientifique)H-Index: 8
#2Samuel Marre (CNRS: Centre national de la recherche scientifique)H-Index: 21
Last.Inseob Hahn (California Institute of Technology)H-Index: 9
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Abstract Analyses of ground-based experiments on near-critical fluids to precisely determine their density can be hampered by several effects, especially the density stratification of the sample, the liquid wetting behavior at the cell walls, and a possible singular curvature of the “rectilinear” diameter of the density coexisting curve. For the latter effect, theoretical efforts have been made to understand the amplitude and shape of the critical hook of the density diameter, which depart from ...
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#1Michael C. HicksH-Index: 8
#2Uday G. HegdeH-Index: 5
Last.Yves GarrabosH-Index: 16
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#1Ana OprisanH-Index: 5
#2Yves GarrabosH-Index: 16
Last.Daniel BeysensH-Index: 32
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Phase transition is a ubiquitous phenomenon in nature, science and technology. In general, the phase separation from a homogeneous phase depends on the depth of the temperature quench into the two-phase region. Earth’s gravity masks the details of phase separation phenomena, which is why experiments were performed under weightlessness. Under such conditions, the pure fluid sulphur hexafluoride (SF 6 ) near its critical point also benefits from the universality of phase separation behavior and cr...
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#1Ana OprisanH-Index: 5
#2Yves Garrabos (CNRS: Centre national de la recherche scientifique)H-Index: 16
Last.Daniel BeysensH-Index: 32
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Phase transition in fluids is ubiquitous in nature and has important applications in areas such as the food industry for volatile oils’ extraction or in nuclear plants for heat transfer. Fundamentals are hampered by gravity effects on Earth. We used direct imaging to record snapshots of phase separation that takes place in sulfur hexafluoride, SF6, under weightlessness conditions on the International Space Station (ISS). The system was already at liquid-vapor equilibrium slightly below the criti...
2 CitationsSource
#1Daniel Beysens (ParisTech)H-Index: 15
#2Yves GarrabosH-Index: 16
Last.Bernard Zappoli (Centre National D'Etudes Spatiales)H-Index: 17
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1 CitationsSource
#1F. Starecki (University of Rennes)H-Index: 6
#2Sandy Morais (CNRS: Centre national de la recherche scientifique)H-Index: 1
Last.Virginie Nazabal (University of Rennes)H-Index: 29
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This paper reports the carbon dioxide detection in silicon-Pyrex high pressure microfluidic devices mimicking geological conditions encountered in deep saline aquifers using an in situ infrared optical sensor. The middle infrared source inserted inside the microchannel is based on infrared emission from Dy3+ sulfide glass fibers. The broad emission of the Dy3+ doping in infrared fibers is used to directly probe the CO2 thanks to the perfect overlap between the rare earth emission centered at 4.4...
14 CitationsSource
#1Vadim NikolayevH-Index: 19
#2Daniel BeysensH-Index: 12
Last.Yves GarrabosH-Index: 16
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Boiling crisis is a transition between nucleate and film boiling. In this communication we present a physical model of the boiling crisis based on the vapor recoil effect. Our numerical simulations of the thermally controlled bubble growth at high heat fluxes show how the bubble begins to spread over the heater thus forming a germ for the vapor film. The vapor recoil force not only causes the vapor spreading, it also creates a strong adhesion to the heater that prevents the bubble departure, thu...
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#1S. Morais (CNRS: Centre national de la recherche scientifique)H-Index: 1
#2N. Liu (CNRS: Centre national de la recherche scientifique)H-Index: 2
Last.Samuel Marre (CNRS: Centre national de la recherche scientifique)H-Index: 21
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In order to investigate at the pore scale the mechanisms involved during CO2 injection in a water saturated pore network, a series of displacement experiments is reported using high pressure micromodels (geological labs on chip – GLoCs) working under real geological conditions (25 < T (°C) < 75 and 4.5 < p (MPa) < 8). The experiments were focused on the influence of three experimental parameters: (i) the p, T conditions, (ii) the injection flow rates and (iii) the pore network characteristics. B...
10 CitationsSource
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