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Separation of Gas Mixtures in a Supersonic Jet. II. Behavior of Helium-Argon Mixtures and Evidence of Shock Separation

Separation of Gas Mixtures in a Supersonic Jet. II. Behavior of Helium-Argon Mixtures and Evidence of Shock Separation

Further experimental evidence is presented for the separation of gas mixtures in the supersonic jet formed by a Laval nozzle. The results are in agreement with a separation theory based on free-molecule kinetics. In addition, anomalies are observed which can be attributed to pressure diffusion effects generated during passage through …