Surface Recombination Coefficients and Boundary-Layer Hypersonic-Flow Calculations on Different Surfaces

The interaction of dissociating oxygen and air on SiO2 in the boundary layer on different structures was discussed. In oxygen the state-selected rates of recombination of atomic species on SiO2 surfaces into vibrationally excited molecules in gas phase were obtained by molecular dynamic approach. The one-dimensional boundary-layer was implemented into heterogeneous catalytic-recombination coeficients depending on local flow conditions. The existence of nonequilibrium vibrational distributions near ceramic and metallic surfaces was established.