3. Size distributions – Empirical laws

The difficulties of theoretically predicting drop sizes during atomization has led to the development of numerous empirical correlations linking the physical parameters of the process to various forms of distributions. These drop size distributions come in two basic forms, either the number of drops N (d) of diameter d (to within plus or minus δd) or the liquid volume V (d) of drops of diameter d (to within plus or minus δd). The two forms of distribution are linked by :

The most commonly used distributions are normal, lognormal,...