Surface Reactions.

The broad concern of the research program during the last two years has been energy exchange phenomena that relate to problems of high speed andor altitude flight conditions. The specific study areas divide into those concerned with particle interactions at a surface which is adjacent to a fluid and those for which radiative exchange between a surface and its induced disturbance field is of dominant importance to the energy transfer. The gas-surface portion of the effort was motivated to a large extent by previous study of graphite oxidation which was carried out with a molecular beam system using dissociated oxygen. The radiation gas dynamics portion represents the culmination of analytical efforts to develop some understanding of coupling modeling and its influence on the predicted rates of energy transfer to a surface during flight situations. Author