Accession Number : ADA322830

Title :   Advanced Diagnostic Techniques Development for Supersonic and Subsonic Combusting Flowfields.

Descriptive Note : Final rept. 15 Apr-14 Oct 96,

Corporate Author : INNOVATIVE SCIENTIFIC SOLUTIONS INC BEAVERCREEK OH

Personal Author(s) : Gross, L. P.

PDF Url : ADA322830

Report Date : 13 NOV 1996

Pagination or Media Count : 72

Abstract : The goal of this program was to address instrumentation problems associated with studying unsteady supersonic and subsonic combustion flows by extending the Particle Imaging Velocimetry (PIV) technique and developing surface techniques capable of pressure, temperature, and heat transfer measurements. Optical-based non-intrusive instrumentation was designed and demonstrated in the Supersonic Combustion Tunnel at Wright Laboratory. The following tasks were accomplished: (1) Significant improvements in PIV analysis software included a new 2D-FFT correlator, a new graphic user interface, increased capacity to read the Kodak color camera files directly, and enhancement of postprocessing routines. (2) New and improved pressure and temperature paints were developed, allowing--for the first time--measurements in diverse, high temperature environments. The temperature range of the pressure paints was significantly increased to 160 deg C. (3) New pressure and temperature paints were applied in the Supersonic Combustion Facility for studying fuel injectors in a Mach 2 flowfield. (4) The design of a lifetime based pressure and temperature instrument was finalized and preliminary experiments conducted. (5) An optical heat flux sensor based on thermographic phosphors was developed and evaluated in a backward facing step test apparatus. Potential applications of these techniques include testing and evaluation in the aerospace, automotive, industrial processing, and architectural industries.

Descriptors :   *FLOW FIELDS, *DIAGNOSIS(GENERAL), *SUBSONIC FLOW, *SUPERSONIC COMBUSTION, *SUPERSONIC FLOW, *SUBSONIC COMBUSTION, HEAT TRANSFER, COMPUTER PROGRAMS, MEASUREMENT, TEMPERATURE, OPTIMIZATION, ENVIRONMENTS, CAPACITY(QUANTITY), INTERFACES, HIGH TEMPERATURE, TEST EQUIPMENT, SURFACES, PARTICLES, IMAGES, PRESSURE, COMBUSTION CHAMBERS, COMPUTER GRAPHICS, USER NEEDS, INSTRUMENTATION, PAINTS, FUEL INJECTORS, UNSTEADY FLOW, VELOCIMETERS, RANGE(EXTREMES), OPTICAL DETECTORS, HEAT FLUX, THERMOGRAPHY, SUPERSONIC WIND TUNNELS, READING, PHOSPHORS.

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE