Turbidity measurements in off-critical SF6
- Paper number
IAC-12,A2,6,9,x15984
- Author
Mr. Yves GARRABOS, CNRS, France
- Coauthor
Eng. Carole Lecoutre, CNRS, France
- Coauthor
Dr. Daniel Beysens, CEA, France
- Coauthor
Dr. Inseob Hahn, National Aeronautics and Space Administration (NASA), United States
- Year
2012
- Abstract
Light transmission and turbidity measurements in the (one-phase) homogeneous region of SF6close to its critical point have been performed in the high-quality thermal and optical environment of the CNES dedicated facility ALI-DECLIC on board the ISS. These precise measurements have benefited from the off-density criticality of the test cell and from the microgravity environment of the space station. The asymptotic formulations for the static isothermal compressibility and the correlation length are verified thanks to these new experimental data that cannot be obtained in ground-based experiments. These data are also used to test different critical-to-classical crossover formulations of the universal equation-of-state of Ising-like systems
- Abstract document
- Manuscript document
(absent)