Original scientific paper

Global behaviour of experimentally determined µ, e, T surfaces of real gases and cusp and butterfly catastrophes*)

M. Ribarić ; „J. Stefan Institute“, University of Ljubljana, Ljubljana
B. Žekš ; „J. Stefan Institute“, University of Ljubljana, Ljubljana

Abstract

Using phenomenological P, e, T equations of state of propylene, ethylene, liquid xenon, liquid argon, methane, nitrogen and oxygen, we have analysed the global behaviour of µ, e, T surfaces in the noncritical region, looking for experimental evidence in support of catastrophe theory. In addition to the Riemann-Hugoniot (cusp) catastrophe displayed by the Van der Waals equation of state, these experimentally determined surfaces also indicate the possibility of higher order, butterfly catastrophe.

Keywords

Hrčak ID:

323231

URI

https://hrcak.srce.hr/323231

Publication date:

28.11.1977.

Article data in other languages: slovenian

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