Abstract
Quantitative mass-spectrometric measurements have been made of the relative species concentrations in non-equilibrium hypersonic flows produced in a shock tunnel. Some partially dissociated flows of either nitrogen, air, or carbon dioxide have been analysed at nominal stagnation enthalpies up to 60 MJ kg-1. Emphasis was placed on eliminating two basic problems which had not been resolved by previous workers. One involved the dependence of electron-impact ionization cross-sections of neutral molecules on their vibrational temperature. The other was to perform a calibration which fully accounted for the effects of separation of the neutral species in the molecular beam sampled from the flow. Experimental results are compared with approximate calculations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
