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
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