THE DENSITY OF NATURAL ICE ACCRETIONS RELATED TO NONDIMENSIONAL ICINGPARAMETERS - COMMENTS

The results obtained by applying the various equations relating the ac creted ice density, rho, to the growth parameters are compared with ea ch other and with direct experimental results. Special attention is pa id to the equation recently proposed by Jones, in which, taking into a ccount an extensive series of results derived from Mt Washington rime experiments, an attempt was made to relate rho to several thermal and dynamical non-dimensional parameters, pi(i). It is shown that this equ ation can lead to large errors, especially at low densities, if the pa rameter ranges are not those that prevailed in the Mt Washington exper iments. This disparity arises from basic defects in the physical argum ents used by Jones to establish the dependence of rho on related pheno mena. Nevertheless, the attempt at relating rho explicitly to the main system parameters through the dimensionless products pi(i) is conside red to be of interest as a possible basis for new studies directed at obtaining a more general equation for rho(pi(i)).