An economical droplet fog generator suitable for laser Doppler anemometry and particle imaging velocity seeding

• Published in: Experiments in fluids Vol. 33; no. 2; pp. 321 - 322
• Main Author: JERMY, M. C
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01-08-2002; Berlin
• Subjects: Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Instrumentation for fluid dynamics; Multiphase and particle-laden flows; Nonhomogeneous flows; Physics; Measurement errors; Particle size distribution; Laser Doppler anemometers; Particle image velocimetry; Droplets; Nebulizor; Experimental study; Velocity measurement; Anemometry; Seeding; Microparticles
• ISSN: 0723-4864; 1432-1114
• DOI: 10.1007/s00348-002-0436-5

An inexpensive device for generating fogs of micron-sized droplets is described. The liquid does not pass through small orifices. It is easily constructed and suitable for liquids containing particulates, seeding high-pressure environments and laser Doppler anemometry, and particle imaging velocimetry. Phase Doppler anemometry measurements show size distributions as a function of pressure for three working fluids. The device consistently produced a narrow size range with a mean diameter of a few microns. (Author)