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Light scattering from deformed droplets and droplets with inclusions: I. Experimental results.

Authors
Secker-DR; Kaye-PH; Greenaway-RS; Hirst-E; Bartley-DL; Videen-G
Source
Appl Optics 2000 Sep; 39(27):5023-5030
NIOSHTIC No.
20020803
Abstract
We provide experimental results from the scattering of light by deformed liquid droplets and droplets with inclusions. The characterization of droplet deformation could lead to improved measurement of droplet size as measured by commercial aerodynamic particle-sizing instruments. The characterization of droplets with inclusions can be of importance in some industrial, occupational, and military aerosol monitoring situations. The nozzle assembly from a TSI Aerodynamic Particle Sizer was used to provide the accelerating flow conditions in which experimental data were recorded. A helium neon laser was employed to generate the light-scattering data, and an externally triggered, pulsed copper vapor laser provided illumination for a droplet imaging system arranged orthogonal to the He Ne scattering axis. The observed droplet deformation correlates well over a limited acceleration range with theoretical predictions derived from an analytical solution of the Navier Stokes equation.
Keywords
Light-emission; Light-absorption; Aerosols; Monitoring-systems; Aerosol-sampling; Vapors; Analytical-methods; Particle-aerodynamics
Contact
U.S. Army Research Laboratory, 2800 Powder Mill Road, Adelphi, MD 20783-1197
CODEN
APOPAI
CAS No.
7440-59-7; 7440-01-9
Publication Date
20000901
Document Type
Journal Article
Email Address
videen@atm.dal.ca
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Issue of Publication
27
ISSN
0003-6935
NIOSH Division
DART
Source Name
Applied Optics
State
OH; MD
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