Accession Number : AD0756534

Title :   Application of Holographic Interferometry to Density Field Determination in Transonic Corner Flow.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Kosakoski,Robert Anthony

Report Date : DEC 1972

Pagination or Media Count : 121

Abstract : The successful application of holographic interferometry to the study of density fields around opaque bodies in wind tunnel experiments has been reported in the literature. The present report extends this technique to the study of the three-dimensional asymmetric flow fields encountered near the wing-fuselage junction of an aerodynamic model in the transonic flow regime. Finite fringe interferometry has been used to obtain fringe information about a partially transparent wind-body structure. A FORTRAN computer program was used to invert the fringe information and produce a plot of the density field around the model. The resulting asymmetric density field and shock wave structure are shown to be an accurate representation of the phenomena encountered in aerodynamic corner flow. (Author)

Descriptors :   (*THREE DIMENSIONAL FLOW, FLOW VISUALIZATION), (*FLOW VISUALIZATION, TRANSONIC FLOW), (*STEREOPHOTOGRAPHY, FLOW VISUALIZATION), SUPERSONIC WIND TUNNELS, WIND TUNNEL MODELS, SHOCK WAVES, EXPERIMENTAL DESIGN, PHOTOGRAPHY, TEST EQUIPMENT, COMPUTER PROGRAMS, THESES, WINGS, FUSELAGES

Subject Categories : Aerodynamics
      Holography
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE