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Avtometriya

2013 year, number 6

Hilbert Diagnostics of Phase Disturbances of the Light Field Induced by a Vortex Flow

V. A. Arbuzov1,2, Yu. N. Dubnishchev1,2, V. G. Nechaev2, O. N. Novoselova2, D. S. Pechkin2, V. V. Sotnikov1,2, E. O. Shlapakova2
1Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 1, Novosibirsk, 630090 Russia
2Novosibirsk State Technical University, pr. Karla Marksa 20, Novosibirsk, 630073 Russia
Keywords: optical diagnostics of flows, Hilbert optics, large-scale vortex structures, vortex rings

Abstract

Methods of Hilbert filtration of phase disturbances of the light field in the spectral range of source emission are discussed. The evolution of complementary vortex rings induced in an air medium by a pressure pulse on the hole in the combustor wall under various boundary and initial conditions is experimentally studied.