Accession Number : ADA150355


Title :   Size and Velocity Distributions of Particles and Droplets in Spray Combustion Systems.


Descriptive Note : Final rept. 1 Mar 80-15 Aug 84,


Corporate Author : ARIZONA STATE UNIV TEMPE DEPT OF MECHANICAL AND AEROSPACE ENGINEERING


Personal Author(s) : Hirleman,E D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a150355.pdf


Report Date : 01 Nov 1984


Pagination or Media Count : 153


Abstract : This research was concerned with laser/optical techniques for size and velocity measurements of particles and droplets in spray combustion systems. The initial efforts were directed toward a novel method for simultaneous size and velocity measurements of individual particles. A prototype instrument was designed, constructed, calibrated, and successfully applied. Our efforts to verify the performance and accuracy of this diagnostic led to a parallel research effort on the laser diffraction droplet sizing technique. Significant contributions to the calibration and scattering inversion aspects of this technique were made. Contributions to the problem of aerosol characterizations are discussed. Among the papers included in this final report are: Integral Transform for Particle sizing by Near-forward Light Scattering; Non-intrusive Laser-based Particle Diagnostics; Particle Sizing by Optical; Nonimaging techniques; Response Characteristics of Laser Diffraction Size Analyzers--Optical sample volume extent and lens effects; Single Beam Laser Velocimetry in Turbulent Flows; Response Characteristics of the Multiple-ratio, Single-particle Counter; and Developments in Non-Doppler Laser Velocimetry.


Descriptors :   *AEROSOLS , *COMBUSTION , *LASER APPLICATIONS , *OPTICAL ANALYSIS , VELOCITY , LIGHT SCATTERING , MEASUREMENT , PARTICLE SIZE , DISTRIBUTION , ACCURACY , TURBULENT FLOW , PARTICLES , DIFFRACTION , DROPS , DIAGNOSIS(GENERAL) , CALIBRATION , LASER VELOCIMETERS


Subject Categories : Lasers and Masers
      Optics
      Combustion and Ignition


Distribution Statement : APPROVED FOR PUBLIC RELEASE