A detailed quasiclassical trajectory (QCT) study of the first Zeldovich reaction, N2 + O → NO + N under re-entry flow conditions is carried out. Emphasis is given to investigating the effect of high temperature and thermodynamic nonequilibrium on the rate constant of this reaction. A modified Arrhenius expression for the rate constant for this reaction is presented based on the QCT data. The agreement with the experimental data is very good. However, at high temperatures (T > 12,000 K) the predicted rate constant is greater than the rate constant proposed by Park by almost an order of magnitude. An analytical expression describing the dependence of the rate constant on the vibrational, rotational and translational temperatures is also given. Finally, the product vibrational distribution of the NO formed by this reaction hi nonequilibrium flows is obtained. It is found that the vibrational temperature of NO formed behind a strong shock is much higher than the overall gas vibrational temperature.
|Original language||English (US)|
|State||Published - 1996|
|Event||34th Aerospace Sciences Meeting and Exhibit, 1996 - Reno, United States|
Duration: Jan 15 1996 → Jan 18 1996
|Other||34th Aerospace Sciences Meeting and Exhibit, 1996|
|Period||1/15/96 → 1/18/96|
Bibliographical noteFunding Information:
Support for the authors is provided by the Army Research Office under Grant No. DAAH04-93-G-0089. This work was also sponsored in part by the Army High Performance Computing Research Center under the auspices of the Department of the Army, Army Research Laboratory cooperative agreement number DAAH04-95-2-0003 / contract number DAAH04-95-C-0008, the content of which does not necessarily reflect the position or the policy of the government, and no official endorsement should be inferred.