Measurement of Mean Particle Sizes of Sprays from Diffractively Scattered Light

Reliable LIF/Mie droplet sizing in sprays using structured laser illumination planar imaging

“…It is therefore important to accurately measure droplet size distribution in sprays, preferably with both high spatial and temporal resolution. In comparison to other existing techniques, the use of laser sheet imaging for droplet sizing is particularly advantageous: First, it is not a point measurement technique like Phase Doppler Interferometry (PDI) [2] or rainbow refractometry [3], second, it is not a line-of-sight approach like laser diffraction [4] or shadow imaging [5] and third, it is not restricted to a small field-of-view like high resolution microscopic imaging [6]. Laser sheet droplet sizing is thus very attractive because of its ability to directly provide a full-field measurement of a spray section.…”

Numerical evaluation of droplet sizing based on the ratio of fluorescent and scattered light intensities (LIF/Mie technique)

“…The Phase Doppler Anemometer [1][2][3][4][5] or PDA measures the size and velocity of droplets at a 'point' determined by a probe volume formed by two crossing laser beams. The laser diffraction technique [6][7][8][9] obtains line of sight sizing measurements along the path of a laser beam passing through a spray. The diffraction pattern of the droplets crossing the beam path is collected by a photodiode array and the overall intensity distribution is converted to the size distribution of the droplets along the beam path.…”

Flame propagation in heterogeneous mixtures of fuel drops and air

“…However, the relation was not developed for turbulent flowing mixtures, and cannot, therefore, be expected to account for the accelerated evaporation rates due to droplet motion and the effect of turbulence in wrinkling the flame front. 13 …”