The influence of non-equilibrium kinetics on the heat transfer and diffusion behind shock wave
In the paper the influence of state-to-state vibrational and chemical kinetics on heat transfer and diffusion behind shock waves formed in supersonic flows of binary gas mixtures N2/N and O2/O is studied. The influence of non-equilibrium processes on flow macroscopic parameters is shown. The contribution of different dissipative processes to the total energy flux and diffusion velocity is estimated.
transport coefficients, state-to-state vibrational kinetics, shock waves
В настоящей работе исследуется влияние поуровневой колебательной и химической кинетики на теплоперенос и диффузию за ударными волнами, образующимися в сверхзвуковых потоках бинарных смесей газов N2/N и O2/O. Показано влияние неравновесных процессов на макропараметры течения. Оценивается вклад различных диссипативных процессов в поток полной энергии и скорость диффузии.
коэффициенты переноса, поуровневая колебательная кинетика, ударные волны
1. Kustova E., Nagnibeda E., The Effect of Level Nonequilibrium Kinetics on Transport Properties of Dissociating Gas Flow behind a Shock Wave // Proceedings of the 21st International Symposium on Shock Waves, edited by A. Houwing (The University of Queensland, Brisbane, 1997), Paper 4231. 2. Kustova E., Nagnibeda E. // Chem. Phys., 1998, Vol. 233, Pp. 5775. 3. Kustova E. // Chem. Phys., 2001, Vo. 270, Pp. 177195. 4. Kustova E., Nagnibeda E., State-to-State Kinetic Theory Approach for Transport and Relaxation Processes in Viscous Reacting Gas Flows // Rarefied Gas Dynamics, edited by D. Levin et al., 2011, Vol. 1333 of AIP Conference Proceedings, Pp. 13711376. 5. Schwartz R.N., Slawsky Z.I., Herzfeld K.F. // J. Chem. Phys. 1952, Vol. 20, Pp. 15911599. 6. Marrone P.V., Treanor C.E.// Phys. Fluids. 1963, Vol. 6, № 9, Pp. 12151221. 7. Lordet F., Meolans J., Chauvin A., and Brun R. // Shock Waves, 1995, № 4, Pp. 299312. 8. Nagnibeda E., Kustova E. Nonequilibrium Reacting Gas Flows. Kinetic Theory of Transport and Relaxation Processes, Springer-Verlag, Berlin, Heidelberg, 2009. 9. Kustova E., Nagnibeda E., Alexandrova T., and Chikhaoui A. // Chem. Phys., 2002, Vol. 276, Pp. 139154.
