3ISO 9300 : Measurement of gas flow by means of critical flow venturinozzles [ S] ,2005.
4K A Park,Y M Choi. The evaluation of critical pressure ratio of sonicnozzles at low Reynolds numbers [ J]. Flow Measurement and Instru-mentation, 2001 (12). : 37 -41.
5S I Nakao,M Takamoto. Chocking phenomena of sonic nozzles at lowReynolds numbers [ J],Flow Measurement and Instrumentation,2000,(11). : 285 -291.
6R W Caron,C L Britton,T M Kegel. The premature unchoking phe-nomena of critical flow Venturis [ C] ,MSC,2004.
7B Mickan, C H Li. The Critical Back Pressure Ratio of SonicNozzles - the Correlation with Diffuser Geometry and Gas Composi-tion [C] ,ISFFM,2012.
