Spontaneous Condensation in a supersonic Flow of Humid Air

抄録

The problem of the spontaneous condensation of water vapor in a supersonic flow of moist air is approximately solved in a way similar to those given previovsly, on the basis of Becker-Döring’s equation for the stationary rate of self-nucleation and also based on the law of droplet growth used before. Comparison of the theoretical prediction with experimental results given by Head shows a considerably good agreement and thus it is revealed that major part of the delay of the appearance of condensation, from which some doubt has been cast over the validity of Becker’s formula in such cases, can be explained plausibly without the notion of time lag in the self-nucleation.