Polychromatic Hilbert diagnostics of the evolution of vortex rings induced by a pressure jump on a hole
Autor: | N. A. Dvornikov, O. N. Novoselova, V. G. Nechaev, Yu. N. Dubnishchev |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Optoelectronics, Instrumentation and Data Processing. 48:227-234 |
ISSN: | 1934-7944 8756-6990 |
DOI: | 10.3103/s8756699012030028 |
Popis: | The evolution of vortex structures induced by a pressure jump on the output hole of the chamber is experimentally studied by methods of the Hilbert diagnostics. Various types of optical filters that ensure the Hilbert and Foucault-Hilbert transforms are considered. Colored visualization of the fields of the phase optical density of the vortex structure in an air medium is performed by using a linear source of white light and a quadrature Hilbert filter. |
Databáze: | OpenAIRE |
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