Accession Number : ADA111912

Title :   Advanced Diagnostics and Instrumentation for Chemically Reactive Flow Systems.

Descriptive Note : Interim scientific rept. 1 Sep 80-30 Sep 81,


Personal Author(s) : Hanson, R K

PDF Url : ADA111912

Report Date : Sep 1981

Pagination or Media Count : 53

Abstract : Progress is reported for the first year of an interdisciplinary program to investigate and develop modern diagnostic techniques for application to reacting flows. Project areas include: (1) development and application of optical probes for species measurements employing tunable ultraviolet, visible and infrared laser sources; (2) development and application of a coherent anti-Stokes Raman spectroscopy (CARS) system for temperature and velocity measurements in a supersonic jet; (3) development of a computed absorption tomography system for species measurements in a plane using a tunable laser source; (4) development of a fast-response temperature monitor, based on line-reversal concepts, applicable to particle-laden high temperature flows; (5) investigation of new quantitative flow visualization concepts, including temporally and spatially resolved species measurements in a plane using laser-induced fluorescence; (6) application of modern diagnostic techniques to a two-dimensional reacting shear layer; (7) development of measurement techniques and a novel facility for investigations of droplet evaporation in turbulent flows; (8) investigation of novel variations of tunable laser absorption spectroscopy yielding spatial resolution, including saturation spectroscopy and ac-Stark effect modulation spectroscopy. (Author)

Descriptors :   *Tunable lasers, *Ultraviolet lasers, *Absorption spectra, *Flow, Radiation absorption, Spatial distribution, Laser beams, Turbulence, Measurement, Velocity, Reaction kinetics, Diagnosis(General)

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE