Artículo
Experimental study of double-cavity flow
Türke, Florian Alexander
; Pastur, L. R.; Sciamarella, Denisse; Lusseyran, F.; Artana, Guillermo Osvaldo
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Fecha de publicación:
06/2017
Editorial:
Springer
Revista:
Experiments In Fluids
ISSN:
0723-4864
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The flow through two facing, identical cavities (double-cavity) is characterized experimentally, as the inflow velocity and the distance between the cavities is varied. Standard 2D2C particle image velocimetry measurements in the spanwise mid-plane provide information on the instantaneous and mean velocity flow fields. Laser Doppler velocimetry measurements at several points in the double-cavity domain reveal the global character of the streamwise fluctuating velocity spectra. The flow is characterized based on time series, recorded in the shear layer of one of the cavities, for a wide range of inflow velocities and intercavity distances. In a detailed spectral study, we show how the shear layer spectra get affected when the two cavities are brought closer together. Based on the experimental data, a temporal local linear stability analysis was carried out, which was able to explain why the frequency peaks for close intercavity distances broaden and move to higher Strouhal numbers.
Palabras clave:
Double Cavity Flow
,
Instabilities
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Identificadores
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Türke, Florian Alexander; Pastur, L. R.; Sciamarella, Denisse; Lusseyran, F.; Artana, Guillermo Osvaldo; Experimental study of double-cavity flow; Springer; Experiments In Fluids; 58; 7; 6-2017
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