Several mathematical methods were investigated to determine a technique for describing droplet-size distributions produced by pneumatic atomization. The Weibull and Logarithm (Log)-Probability functions have been shown to be reasonably successful in describing these distributions. Data from forty-three experiments and the standard deviation of the experimental results from the theoretical curves for both the mass and the frequency distributions are reported. These results show that the Weibull and Logarithm-Probability functions describe the frequency distribution with the same degree of accuracy;the Weibull function, however, describes the mass distribution much better than does the Log-Probability function.
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