Chemical Nonequilibrium in Supersonic Nozzle Flow

[+] Author and Article Information
Roa-Ling Wang

Department of Mechanical Engineering, Sir George Williams University, Montreal, Canada

J. Basic Eng 93(4), 576-586 (Dec 01, 1971) (11 pages) doi:10.1115/1.3425312 History: Received December 17, 1970; Online October 27, 2010


An experimental and theoretical study has been made on chemical nonequilibrium flows in a supersonic nozzle for a mixture of dissociated gases and inert diluent. In the calculations, four different flow behaviors were assumed: one-dimensional non-equilibrium, two-dimensional nonequilibrium, two-dimensional equilibrium, and two-dimensional frozen flows. These were compared with measurements of the static pressure and NO2 concentration in the supersonic nozzle flow of the NO2 -N4 O2 -N2 reactive system. Relatively good agreement demonstrates the applicability of the proposed calculation methods and the validity of the assumed reaction mechanisms and their rate constants.

Copyright © 1971 by ASME
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