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On the flow around Glauert‐Goldschmied body in the narrow channel and separation control strategy
Author(s) -
Procházka Pavel,
Uruba Václav
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610310
Subject(s) - plasma actuator , actuator , flow control (data) , flow (mathematics) , channel (broadcasting) , dielectric barrier discharge , mechanics , separation (statistics) , groove (engineering) , ion wind , flow separation , control theory (sociology) , acoustics , boundary layer , materials science , mechanical engineering , engineering , physics , computer science , electrical engineering , control (management) , dielectric , telecommunications , electrode , quantum mechanics , artificial intelligence , machine learning
Previously, there was tested a wire dielectric barrier discharge (DBD) plasma actuator to generate sufficiently strong ionic wind to affect freely developed boundary layer in the narrow channel. This paper will report about next step – to installation of actuator inside a streamlined body. The experiment will take place inside perspex rectangular (250 × 100 mm) channel and main task is to find the appropriate place for actuator fitting for three different flow regimes. Hence, the separation point and recirculation area will be investigated via PIV anemometry for base case and for active flow control methods (e.g. plasma actuator) as well as frequency spectrum of the flow will be evaluated to describe the nature of the flow. The measurement plane will be perpendicular to the bottom of the channel and in longitudinal level. These essential information will be used for actuator design, actuator embedding and to tune actuator frequency in order to suppress the recirculation area as much as possible. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)