Accession Number : ADA187505

Title :   Turbulence Interactions in Single- and Multi-Phase Turbulent Mixing and Combustion Processes.

Descriptive Note : Final rept. 1 Aug 86-31 Jul 87,

Corporate Author : MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING

Personal Author(s) : Faeth, G M ; Parthasarathy, R N

PDF Url : ADA187505

Report Date : 15 Aug 1987

Pagination or Media Count : 29

Abstract : Turbulent multiphase flows (particle-laden jets, particle-laden flows in ducts, sprays, etc.) have technical applications for the combustion processes of airbreathing propulsion systems, and solid and liquid rocket motors. This report describes an upgrade of a single channel laser Doppler anemometer (LDA) to provide critical measurements needed to gain a better understanding of this class of multiphase flows. The upgrade yields a system which can be configured in several ways: a phase-discriminating LDA which provides either two phase-velocity components at a single point, or phase velocities at two points which are independently transversable; and a phas-Doppler LDA which can provide two-component particle (or drop) size and velocity information at a single point. All systems can yield particle (or drop) number fluxes. The arrangement of these systems is described along with some representative results using the phase-discrimination configuration. Keywords: Dilute dispersed flows; Laser Doppler anemometry; Multiphase flow; Particle-laden jet flow.

Descriptors :   *COMBUSTION, *MULTIPHASE FLOW, *TURBULENT FLOW, AIR BREATHING ENGINES, PROPULSION SYSTEMS, DILUTION, DISPERSING, FLOW, DOPPLER SYSTEMS, LASER ANEMOMETERS, JET FLOW, PARTICLES, MEASUREMENT, DUCTS, ROCKET ENGINES, PHASE, VELOCITY, PARTICLE FLUX, DROPS, PARTICLE SIZE, DISCRIMINATION, INTERACTIONS, TURBULENCE

Subject Categories : Fluid Mechanics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE