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Stain method for measurement of drop size.
Environ Sci Technol 1977 Feb; 11(2):192-194
A theoretical relation between water drop and stain diameters, D and S, presented elsewhere is in agreement with the empirical expression of D = asb, where a and b are constants. The present theoretical value of a depends upon impact velocity and the natures of the liquid and target surface, and the value of b equals 4/5. For large drops moving with terminal velocities, the value of a becomes insensitive to impact velocity, and the value of b becomes 2/3. Values of D are predicted to within +/-16% for a wide range of drop sizes and velocities and to within +/-2% for large drops moving at their terminal velocities.
OP; Journal Article
Issue of Publication
Environmental Science and Technology
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division