Some possibilities of using gas mixtures other than air in aerodynamic research

Author / Creator

Chapman, Dean R

Available as

Online

Summary

A study is made of the advantages that can be realized in compressible-flow research by employing a substitute heavy gas in place of air. Heavy gases considered in previous investigations are eithe...

A study is made of the advantages that can be realized in compressible-flow research by employing a substitute heavy gas in place of air. Heavy gases considered in previous investigations are either toxic, chemically active, or (as in the case of the Freons) have a ratio of specific heats greatly different from air. The present report is based on the idea that by properly mixing a heavy monatomic gas with a suitable heavy polyatomic gas, it is possible to obtain a heavy gas mixture which has the correct ratio of specific heats and which is nontoxic, nonflammable, thermally stable, chemically inert, and comprsed of commercially available components.

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