Numerical and volumetric frequency of sprinkler drop-size from water distribution radial curve part II: Experimental validation

In the previous Part I, a mathematical model was proposed to correlate the travel distance of the drops from the irrigation sprinkler with the drops water volume. In the current work, the mathematical model was transformed in an indirect method to calculate the sprinkler drop-size spectra and hence in an algorithm implemented in a spreadsheet. These spectra were compared with two experimental data groups available in literature. The comparison between the predicted and experimental values of the two cumulative droplet-size distribution curves, considering the maximum absolute difference (dKS), showed a good precision with a Kolmogorov-Smirnov statistic dKS equal to 0.076 and to 0.111 respectively, depending on two experimental data groups used.