NON-EQUILIBRIUM CONDENSATION OF CARBON DIOXIDE IN SUPERSONIC NOZZLES,
Abstract
Experiments involving the condensation of CO2 in three supersonic nozzles were conducted. Results indicate that moisture formation is not abrupt as in the case of pure water vapor, but is more gradual. The stream remains considerably super-saturated downstream of initial condensation. Rates of expansion, as determined by nozzle geometry, have a marked influence upon the degree of supersaturation obtained prior to condensation. Nucleation and drop growth theory, as applied in this study, will reasonably predict the conditions at onset of condensation provided small corrections to flat film liquid surface tension are applied. This correction amounts to an increase of between 17% and 38% in flat film liquid values, depending upon values of thermal and mass accommodation coefficients which are applied. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1966
- Accession Number
- AD0478063
Entities
People
- Karl M. Duff
Organizations
- Massachusetts Institute of Technology