Accession Number : ADA124304


Title :   CARS Diagnostics of High Pressure Combustion.


Descriptive Note : Final technical rept. 15 Feb 79-30 Sep 82,


Corporate Author : UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CT


Personal Author(s) : Stufflebeam,John H ; Shirley,John A ; Hall,Robert J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a124304.pdf


Report Date : Nov 1982


Pagination or Media Count : 106


Abstract : Under Contract DAAG29-79-C-0008 sponsored by the Army Research Office, the United Technologies Research Center (UTRC) has conducted basic research investigations into coherent anti-Stokes Human spectroscopy (CARS). CARS is a remote laser diagnostic technique for temperature and species measurements in hostile combustion environments. As such it possesses considerable relevance to the Army in the general areas of ballistics, propulsion and internal combustion engines. This final report describes the results of the investigation which were conducted in two specific areas. The first area concerns the effects of high pressure, specifically the phenomenon of collisional narrowing, on CARS spectra from which temperature and density information device. Experimental studies of CARS spectra are conducted in N2 and CO2 in a heated, high pressure cell. The experimental spectra were in excellent agreement with the theoretical model developed to describe high pressure CARS spectroscopy. (Author)


Descriptors :   *RAMAN SPECTROSCOPY , *HIGH PRESSURE , *COMBUSTION , *DIAGNOSTIC EQUIPMENT , *INTERNAL COMBUSTION ENGINES , MEASUREMENT , TEMPERATURE , EXPERIMENTAL DATA , COMPUTATIONS , LASERS , NITROGEN , PROPULSION SYSTEMS , REMOTE DETECTORS , EQUATIONS , CARBON DIOXIDE , STOKES RADIATION , COLLISION AVOIDANCE , BALLISTICS , THERMOMETERS , DIFFUSION THEORY


Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Combustion and Ignition


Distribution Statement : APPROVED FOR PUBLIC RELEASE