Abstract
In hypersonic flight and in high enthalpy test facilities it is normal for the flow to be dissociated and not in chemical equilibrium. There may be a significant amount of energy in latent form, particularly the heat of formation of atomic species. When an object or spacecraft encounters the flow the atoms may recombine on surfaces and give up part of that latent heat of dissociation to the surface. The amount of energy transferred to the surface depends on diffusion to the surface, the energy of the chemical bond, and on the probability of recombination on the surface. Other factors affecting the energy transfer is the fraction of the bond energy given to the surface per recombination event.
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Scott, C.D. (1996). Recombination of Atomic Species on Surfaces. In: Capitelli, M. (eds) Molecular Physics and Hypersonic Flows. NATO ASI Series, vol 482. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0267-1_9
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DOI: https://doi.org/10.1007/978-94-009-0267-1_9
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