QUANTITATIVE COMPARISON BETWEEN INTERFEROMETRIC MEASUREMENTS AND EULER COMPUTATIONS FOR SUPERSONIC CONE FLOWS

Dual-reference-beam, plane-wave digital holographic interferometry has been applied to obtain quantitative interferometric data in the three -dimensional supersonic flow over circular cones, The interferometric data are compared quantitatively on a two-dimensional grid with the po stprocessed results of an Euler code that simulates three-dimensional inviscid compressible flows. The comparison involves two different com binations of cone angle and angle of incidence, The maximum deviations between the interferometric data and the numerical data are found to lie in the error interval [-2.0%, +2.0%].