Droplet Sizing Research.

reportActive / Technical Report | Accession Number: ADA158318 | Open PDF

Abstract:

A method to measure the size and velocity of individual particles in a flow is discussed. Results are presented for controlled monodisperse sprays and compared to flash photographs. Typical errors between predicted and measured sizes are less than 5. Experimental results of the probe volume size are satisfactorily compared to a theoretical algorithm. A very simple optical apparatus is described and used to characterize a spray produced by a simplex nozzle. The size distribution and the Sauter mean diameter of this spray are presented as a function of position and pressure. Originator-supplied keywords Droplet sizing, Particle velocity, Mass flux, Nonintrusive, Advanced laser diagnostics.

Author(s):
Hess, C. F.
Author Organization(s):
SPECTRON DEVELOPMENT LABS INC COSTA MESA CA
Descriptive Note:
Annual rept. 15 Jan 84-15 Jan 85,
Pagination:
0063

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SDL-85-2286-12, AFOSR-TR-85-0562
Contract/Grant Number(s):
F49620-83-C-0060
Task Number(s):
A3
Project Number(s):
2308
Monitor Series:
TR-85-0562
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.5_Direct; JCA_5.5.1_Communicate Intent and Guidance; JCA_5.6.1_Assess Compliance with Guidance; JCA_5.6_Monitor; JCA_5.5.2_Task; JCA_5.3_Planning; JCA_4.6_Engineering; JCA_1.2.7_Experimentation; JCA_1.2.6_Concepts; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support
Modernization Areas:
Directed Energy
Communities of Interest:
Advanced Electronics
Descriptor(s):
*DROPS, *SPRAYS, VELOCITY, ALGORITHMS, FUNCTIONS, DIAMETERS, MEASUREMENT, OPTICAL EQUIPMENT, PARTICLE SIZE, POSITION(LOCATION), PROBES, VOLUME, SIZES(DIMENSIONS), FLUX(RATE), LASERS, LASER BEAMS, INTERFEROMETRY, MASS FLOW, PARTICLES, DIAGNOSIS(GENERAL), DIAGNOSTIC EQUIPMENT, MEAN, PHOTOGRAPHS, LASER VELOCIMETERS, FLASHES, SPRAY NOZZLES
Field(s)/Group(s):
Lasers and Masers, Test Facilities, Equipment and Methods, Fluid Mechanics
Keyword(s):
Monodisperse sprays, Flash photographs, Droplet size measurement, Simplex spray nozzles, PE61102F, WUAFOSR2308A3
Report Date:
1985 Apr 15