Publication Date:
2019-07-13
Description:
A computer code nozzle in n-temperatures (NOZNT), which calculates one-dimensional flows of partially dissociated and ionized air in an expanding nozzle, is tested against three existing sets of experimental data taken in arcjet wind tunnels. The code accounts for the differences among various temperatures, i.e., translational-rotational temperature, vibrational temperatures of individual molecular species, and electron-electronic temperature, and the effects of impurities. The experimental data considered are (1) the spectroscopic emission data; (2) electron beam data on vibrational temperature; and (3) mass-spectrometric species concentration data. It is shown that the impurities are inconsequential for the arcjet flows, and the NOZNT code is validated by numerically reproducing the experimental data.
Keywords:
Fluid Mechanics and Heat Transfer
Type:
NASA-TM-111818
,
NAS 1.15:111818
,
AIAA Paper 23-2862
,
Journal of Thermophysics and Heat Transfer; 9; 1; 9-16|AIAA Thermophysics Conference; Jul 06, 1993 - Jul 09, 1993; Orlando, FL; United States
Format:
text
