Expansion of a Very Low Quality Two-Phase Fluid Through a Convergent-Divergent Nozzle

Flow in de Laval nozzles of high pressure, low-quality steam-water mixtures was investigated to determine the resulting mass flow rates and to acquire design criteria information. Qualities ranged from 0 to 20 percent and pressures up to 1000 psia. Comparisons of the experimental data to three simpl...

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Bibliographic Details
Published in:Journal of basic engineering 1964-06, Vol.86 (2), p.247-254
Main Authors: Starkman, E. S, Schrock, V. E, Neusen, K. F, Maneely, D. J
Format: Article
Language:English
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Summary:Flow in de Laval nozzles of high pressure, low-quality steam-water mixtures was investigated to determine the resulting mass flow rates and to acquire design criteria information. Qualities ranged from 0 to 20 percent and pressures up to 1000 psia. Comparisons of the experimental data to three simple models: (a) isentropic expansion; (b) frozen composition; and (c) slip flow, showed satisfactory correspondence at all conditions except for qualities very close to saturated liquid. Observation was made that a condition similar to shock resulted when the nozzles were overexpanded.
ISSN:0098-2202
0021-9223
1528-901X
DOI:10.1115/1.3653047