A model is presented to describe stagnation point ablation for an axially symmetric body consisting of a heterogeneous dispersion of carbon particles in glass. Ablation for this system'approximates important dynamic ablation characteristics of Fiberglas-reinforced phenolic resin materials. Endothermic carbon-silica reaction enters as a significant mechanism of ablation and produces a sharp cutoff temperature for any given stagnation point pressure, thus giving rise to a surface-adjacent zone where all chemical reaction occurs. Other processes encompassed in the mathematical model are energy transport, molten glass flow, and mass addition to the boundary layer. Numerical results are in encouraging agreement with experiment.
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Rosensweig et al. (1963) studied this question.
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