critical-pressure ratio

critical-pressure ratio

[′krid·ə·kəl ′presh·ər ‚rā·shō]
(fluid mechanics)
The ratio of the critical pressure of a nozzle to the admission pressure of the nozzle (equals 0.53 for gases).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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