D-321 高温域における水素分子の回転-振動緩和と解離について

概要

論文の詳細を見る
The master equations with the QCT state-to-state rates are integrated to see how the ro-vibrational population of molecular hydrogen varies with time during the energy relaxation at the heat bath temperature of 1,000,5,000 and 10,000 K. The relaxation time for rotational and vibrational modes are determined based on the Landau-Teller theory. The obtained vibrational relaxation times agree well with the existing empirical expression derived from shock tube experiment by Dove. The obtained rotational relaxation times also agree with the experimental data at 1,000 K of Lensch and Grinig. The Landau-Teller theory is expected to give reasonable relaxation time up to 5,000 K. For the high temperature as high as 10,000 K, however, it is found that Landau-Teller equation is not adequate to express relaxation time of molecular hydrogen because of the QSS associated with the state-to-state transition and the dissociation process.
日本流体力学会の論文
2003-07-28