Measurement of the heterogeneous recombination probability of oxygen atoms in the course of supersonic dissociated gas flow interaction with solid body surfaces

A technique for determining time-resolved heterogeneous recombination probabilities ▪ W is developed which is based on comparison of the measured and calculated heat fluxes to a flat wedge-like plate set at a small expansion angle to a supersonic dissociated gas flow behind a shock wave with the typical parameters: pressure of 100 mm Hg, temperature of 3000 – 4000 K, and velocity of 2.5 – 3.0 km s −1.