Detailed analysis of the results of experiments on the ablation of quartz glass made by Adams et al.  showed (Zalogin ) that their study contains contradictions which cannot be eliminated in the framework of their assumptions. The good agreement between the experimental results and a theory of the ablation of quartz glass  is fortuitous and due both to an incorrect interpretation of the experiments as well as the assumption made in the theory that the physicochemical processes near an ablating surface take place in equilibrium. These conclusions are confirmed by exact numerical solution of the associated problem of heat and mass transfer on the surface of ablating quartz glass in a high-enthalpy flow of dissociated air . It is shown that the results of such ablation experiments can be used to determine the catalytic activity of the surface of glassy materials in relation to the recombination of atoms at the ablation temperature.
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 4, pp. 125–131, July–August, 1983.
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Bespalov, V.L., Zalogin, G.N. Influence of nonequilibrium physicochemical processes in the boundary layer on the ablation of quartz glass. Fluid Dyn 18, 601–607 (1983). https://doi.org/10.1007/BF01090628
- Boundary Layer
- Mass Transfer
- Catalytic Activity