NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Flow properties in expansion tube with helium, argon, air, and CO2Test flow velocities from 5 to 7 km/sec were generated in a 6-in. expansion tube using helium, argon, air, and CO2 test gases. Pitot pressure profiles across the flow at the test section are presented for the four test gases, and measured flow quantities are compared to computer predicted values. Comparison of predicted and measured flow quantities suggests the expansion to be near thermochemical equilibrium for all test gases and implies the existence of a totally reflected shock at the secondary diaphragm. Argon, air, and CO2 flows were observed to attenuate while traversing the acceleration section, whereas no attenuation was observed for helium.
Document ID
19740045297
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Miller, C. G.
(NASA Langley Research Center Space Systems Div., Hampton, Va., United States)
Date Acquired
August 7, 2013
Publication Date
April 1, 1974
Publication Information
Publication: AIAA Journal
Volume: 12
Subject Category
Fluid Mechanics
Accession Number
74A28047
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available