@techreport{oai:jaxa.repo.nii.ac.jp:00045241, author = {松崎, 利一 and 平林, 則明 and MATSUZAKI, Riichi and HIRABAYASHI, Noriaki}, month = {Jun}, note = {Three models are proposed for the study of high enthalpy, reactive flow of air. They are the dissociation model (O2, N2, O, N, NO), the seven species model (O2, N2, O, N, NO, NO+, e-), and the thirteen species model (O2, N2, O, N, NO, O+, N+, NO+, O2+, N2+, A, A+, e-). The latter two ionization models were tested both for the equilibrium properties and for the nonequilibrium flows. For the equilibrium properties, the seven species model is inadequate in comparison with the thirteen species model, especially at low pressures. Nonequilibrium flows behind shock waves and those through a nozzle were calculated using these two models. The results show that the ionization recombination reactions of O and N will affect the flow properties in the flow behind the shock wave at the Mach number of 20. On the other hand, there is insignificant difference between the two models in the nozzle flow at TO=7,000K and P0=1MPa. The seven species model is sufficient at a Mach number smaller than about 10., 資料番号: NALTR0982000, レポート番号: NAL TR-982}, title = {Study of Chemical Reaction Models for High Enthalpy Flow of Air}, year = {1988} }