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Gravity effects in fluids near the gas liquid critical point

Published

Author(s)

Michael R. Moldover, Jan V. Sengers, R W. Gammon, R Hocken

Abstract

The presence of a gravitational field leads to both practical and fundamental limits of the resolution in critical phenomena experiments in fluids near the gas-liquid critical point. We present equations that yield estimates of the gravitational limitations in a variety of critical phenomena experiments for a large number of fluids and as a function of the magnitude of the gravitational field. Various strategies for improving the resolution of such experiments are discussed, including procedures that remove a fluid from thermodynamic equilibrium (e.g., stirring). A comparison is made between the gravitational limitations in earth-bound experiments and those at the microgravitational levels that may become accessible in an orbiting laboratory.
Citation
Reviews of Modern Physics
Volume
51
Issue
1

Citation

Moldover, M. , Sengers, J. , Gammon, R. and Hocken, R. (1979), Gravity effects in fluids near the gas liquid critical point, Reviews of Modern Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925171 (Accessed July 22, 2024)

Issues

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Created January 1, 1979, Updated June 2, 2021