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Unsteady adiabatic isentropic expansion of gas into vacuum from a toroidal puff valve

 

作者: Patrick D. Pedrow,   Abutaher M. Nasiruddin,   R. Mahalingam,  

 

期刊: Journal of Applied Physics  （AIP Available online 1990）
卷期: Volume 67, issue 10  

页码: 6109-6113

 

ISSN:0021-8979

 

年代: 1990

 

DOI:10.1063/1.345171

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Observations were made on the expansion of polyatomic (CF4) and diatomic (O2) gases into vacuum from a toroidal puff valve. Fast ionization gauge measurements have been compared with an unsteady adiabatic isentropic model. Observed temporal and spatial gas density profiles closely followed model predictions until the arrival of gas reflected from the upstream wall of the vacuum vessel.

 

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