Accession Number : ADP009046

Title :   Beam Deflection Tomography-Application to Density Measurements in Two Interacting Parallel Free-Jets,

Corporate Author : CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CHATENAY-MALABRY (FRANCE)

Personal Author(s) : Cohat, M. ; Perrin, M. -Y. ; Martin, J. -P. ; Dettleff, G. ; Doering, S.

Report Date : 23 JUL 1992

Pagination or Media Count : 5

Abstract : Beam-deflection optical tomography is used to reconstruct 2-D density maps in non axisymmetrical media. The images are reconstructed by the convolution backprojection algorithm with M*N deflections measured at M angles and N positions per angle. The reconstruction procedure and the limits of the method are discussed. This technique has been applied to the investigation of the interacting flow between two parallel supersonic free-jets of air or nitrogen. (Author)

Descriptors :   *TOMOGRAPHY, *OPTICAL IMAGES, *JET FLOW, *SUPERSONIC FLOW, IMAGE PROCESSING, FLOW VISUALIZATION, HIGH RESOLUTION, DEFLECTION, LASER BEAMS, FRANCE, GERMANY, TWO DIMENSIONAL, FLOW FIELDS, SPATIAL DISTRIBUTION, FOURIER TRANSFORMATION, FLUX DENSITY.

Subject Categories : Optical Detection and Detectors
      Fluid Mechanics
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE