Accession Number : AD0851934

Title :   Quantitative Gas Flow Measurements Using a Moire' Optical System.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Jones, Jerry T.

Report Date : MAR 1969

Pagination or Media Count : 54

Abstract : A moire' optical system is applied to measurements in forced gas flow. Verification tests on a vertical heated flat plate with one steady and two spark light sources gave acceptable values for the temperature gradient in the boundary layer. The relative efficiency of a nozzle with 12 interchangeable inlet geometries is evaluated by using temperature gradients obtained with the optical system. Calculations of densities using a linear theory developed in the paper gave less than 1% deviation from measured values for a heated flat plate and 4.8% deviation from the isentropic value in supersonic flow. (Author)

Descriptors :   (*GAS FLOW, OPTICAL ANALYSIS), (*OPTICAL EQUIPMENT, GAS FLOW), MEASUREMENT, FLAT PLATE MODELS, BOUNDARY LAYER, EFFICIENCY, THERMODYNAMICS, DENSITY, SUPERSONIC CHARACTERISTICS, THESES.

Subject Categories : Fluid Mechanics
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE