Nonequilibrium Kinetics and Heat Transfer in O/O Mixtures near Catalytic Surfaces

Effect of molecular diameters on state-to-state transport properties: The shear viscosity coefficient

“…Calculations performed in Refs. [12][13][14][15][16][17] showed important peculiarities of mass and heat transfer in the absence of quasi-stationary vibrational distributions, in particular, the role of diffusion of vibrational states.…”

Different Approaches for Modelling of Heat Transfer in Non-Equilibrium Reacting Gas Flows

“…Then the obtained non-equilibrium distributions were used to calculate the transport coefficients, diffusion velocities, and heat fluxes on the basis of the accurate formulae of the kinetic theory. This approach was used for the evaluation of transport properties in the flows of non-equilibrium reacting mixtures of air components behind shock waves Chikhaoui et al (2000); , in the nozzle expansion Capitelli et al (2002); Kustova, Nagnibeda, Alexandrova & Chikhaoui (2002), in the hypersonic boundary layer Armenise et al (2006;; Kustova, Nagnibeda, Armenise & Capitelli (2002) (see also ). Below, we present some results of these applications concerning heat transfer in particular flows studied using the state-to-state, multi-temperature and one-temperature models.…”

“…One can see that q increases significantly with the reservoir temperature T 0 . The influence of different kinetic models on the heat transfer in a non-equilibrium boundary layer and contribution of different kinetic processes to the total energy transfer are studied for N 2 /N and O 2 /O mixtures in Armenise et al (2006;; Kustova, Nagnibeda, Armenise & Capitelli (2002). It is interesting to emphasize noticeable competition of the thermal and mass diffusion processes found for N 2 /N mixture near non-catalytic surface.…”

Chemical reaction rates and non-equilibrium pressure of reacting gas mixtures in the state-to-state approach

“…However in these studies a rigorous formulation of transport phenomena was missing. In [11,12], the kinetic theory algorithms for the state-specific transport properties were developed, and then applied to the assessment of heat fluxes in various flows of air species [13][14][15][16] and carbon dioxide [17,18]. The weakness of these studies is that the rates of non-equilibrium processes are calculated neglecting deviations of the distribution function from the Maxwell-Boltzmann.…”