A paper reviews theoretical and experimental research on the behaviors of supercritical fluids and, for comparison, subcritical fluids. Experiments with drops, isolated or in groups, streams, shear layers, mixing layers, jets, and sprays are tabulated and discussed as a precursor to forming a concept of fluid behavior. The physics of the supercritical and subcritical regimes is discussed, and major differences between observations in the two regimes are identified and explained.

This work was done by Josette Bellan of Caltech for NASA's Jet Propulsion Laboratory. To obtain a copy of the paper, "Supercritical (and Subcritical) Fluid Behavior and Modeling: Drops, Streams, Shear and Mixing Layers, Jets and Sprays," access the Technical Support Package (TSP) free on-line at www.nasatech.com/tsp  under the Physical Sciences category.


NASA Tech Briefs Magazine

This article first appeared in the February, 2001 issue of NASA Tech Briefs Magazine.

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