We have placed a 1mm-thick laser sheet under a nozzle. We would like to know the total volume of the droplets within the sheet. Any suggestions? I think in order to model this accurately, the loss due to evaporation, the aerodynamic friction, spray velocity distribution should be into account.
The following literaure may be useful for your research
Abstract: This paper reports an experimental technique that is developed for instantaneous planar measurement of droplet size and velocity for dilute sprays in general and sprinkler sprays in particular. This particle tracking technique
relies on photographic measurements of two-color fluorescence or fluorescence and Mie scattering from droplets to determine their size and velocity. Measurements were made in a plane that passes through the vertical axis ofsymmetry of an axis-symmetric sprinkler spray. Drop velocities and drop sizes down to 200 µm were measured fromthe digitized double-exposed photographs of sprinkler sprays. The directional ambiguity was resolved by color differentiation. A combination of fluorescence and Mie scattering was investigated for a 250 mm × 350 mm
measurement area, while two-color fluorescence was investigated for 460 mm × 540 mm measurement area. Dye selection and concentrations were determined by testing the fluorescence output of various water tracer dyes.Collection optics and laser powers were varied to optimize the color differentiation and maximize the resolution fordrop size measurements.
Ref: Simultaneous Measurements of Drop Size and Velocity in Large-Scale
Sprinkler Flows Using Particle Tracking and Laser-Induced Fluorescence
Anthony D. Putorti Jr.1, David Everest, and Arvind Atreya2
National Institute of Standards and Technology, NIST GCR 03-852,US, 2003
fire.nist.gov/bfrlpubs/fire03/PDF/f03017.pdf
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