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METHODOLOGICAL NOTES

'Negative heat capacity' in stratified fluids

L. Kh. Ingel'

Institute of Experimental Meteorology, Scientific and Production Association "Typhoon"

Abstract: In 'doubly nonequilibrium' fluids (e.g., in temperature- and admixture-concentration-stratified solutions in the gravity field) situations may occur in which adding (extracting) heat can lower (raise) the temperature of the medium. Several simple examples of this phenomenon are considered.

PACS: 44.35.+c, 47.27.Fe, 92.60.Ek

Received: January 21, 2002

DOI: 10.3367/UFNr.0172.200206d.0691

 English version: Physics–Uspekhi, 2002, 45:6, 637–644

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