A new two-temperature dissociation model for reacting flowsA new two-temperature dissociation model for flows undergoing compression is derived from kinetic theory. The model minimizes uncertainties associated with the two-temperature model of Park. The effects of the model on AOTV type flowfields are examined and compared with the Park model. Calculations are carried out for flows with and without ionization. When considering flows with ionization, a four temperature model is employed. For Fire II conditions, the assumption of equilibrium between the vibrational and electron-electronic temperatures is somewhat poor. A similar statement holds for the translational and rotational temperatures. These trends are consistent with results obtained using the direct simulation Monte Carlo method.
Document ID
19920065285
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Olynick, David R. (NASA Langley Research Center Hampton, VA, United States)
Hassan, H. A. (North Carolina State University Raleigh, United States)