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Flow properties in expansion tube with helium, argon, air, and CO2 (1974)

Miller, C. G.

In: Other Sources

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Publication Date: 2011-08-16

Description: Test 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.

Keywords: FLUID MECHANICS

Type: AIAA Journal; 12; Apr. 197

Format: text

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