Particle image velocimetry of active flow control on a compressor cascade

Autor:	Marius Swoboda, André Huppertz, R. van Rennings, Wolfgang Nitsche, Vincent Zander, Martin Hecklau
Rok vydání:	2010
Předmět:	Fluid Flow and Transfer Processes Materials science Stator Internal flow Computational Mechanics General Physics and Astronomy Mechanics Secondary flow law.invention Vortex Flow control (fluid) Particle image velocimetry Mechanics of Materials law Cascade Gas compressor
Zdroj:	Experiments in Fluids. 50:799-811
ISSN:	1432-1114 0723-4864
DOI:	10.1007/s00348-010-0895-z
Popis:	AFC (Active Flow Control) experiments have been performed by means of steady and pulsed blowing out of the sidewalls as well as out of the blade’s suction surface in a highly loaded compressor cascade. PIV (Particle Image Velocimetry) was used to evaluate the fully three-dimensional internal flow field and the impact of AFC methods. The aim was to observe the secondary flow structures and flow instabilities by PIV, to tune the AFC device operation parameters. This paper summarizes the different PIV measurements performed at the stator cascade to give an overview of the dominant flow features in the passage flow field and to obtain a detailed view of control mechanisms. In addition, a new vortex detection method is presented, based on a 2D-wavelet which is applicable in two-dimensional velocity data fields.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ec1858bffabf6b33da46ec2937d1ebf https://doi.org/10.1007/s00348-010-0895-z Zobrazit plný text záznamu Full text from SpringerLink