Effect of signal modulation of dbd plasma actuator on flow control around NACA 0015

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dc.contributor.authorGüler, Adem Arif
dc.contributor.authorSeyhan, Mehmet
dc.contributor.authorAkansu, Yahya Erkan
dc.date.accessioned2024-11-07T10:39:49Z
dc.date.available2024-11-07T10:39:49Z
dc.date.issued2018
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractEffects of DBD plasma actuator driven by six different type modulated signals on flow around NACA 0015 airfoil are experimentally investigated for lift augmentation. One actuator attached to the upside of the airfoil at x/c = 0.1 is used. Force measurement and smoke wire flow visualization are performed in a low speed wind tunnel. For Re= 3.6x104, the actuator is driven with six different signal modulations among which frequency modulation, amplitude modulation, excitation frequency and duty cycle at ? = 10°. SM4 including amplitude modulation is indicated to have better performance than the other signal modulations. Signal modulations provide energy savings while generating plasma to increase the lift coefficient. The obtained results indicate that as the dimensionless excitation frequency (F+) is 1 at low duty cycle, a better lift coefficient is obtained in comparison with the other F+ values. For Re= 3x104, the lift coefficient is proportionally increased with driving voltage and frequency due to increasing induced flow at ? = 10°. Flow visualization results showed that the separated shear layer at the leading edge gets closer to the (suction) surface of the airfoil by increasing the driving voltage from 6 kVpp to 8 kVpp which confirms the driving voltage effect. © 2018 TIBTD Printed in Turkey.
dc.description.sponsorshipTUBITAK, (110M056); Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK
dc.identifier.endpage105
dc.identifier.issn1300-3615
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85052708481
dc.identifier.scopusqualityQ4
dc.identifier.startpage95
dc.identifier.urihttps://hdl.handle.net/11480/11230
dc.identifier.volume38
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTurk Isı Bilimi ve Teknigi Dernegi
dc.relation.ispartofIsi Bilimi Ve Teknigi Dergisi/ Journal of Thermal Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectActive flow control
dc.subjectAirfoil
dc.subjectDBD plasma actuator
dc.subjectSignal modulation
dc.titleEffect of signal modulation of dbd plasma actuator on flow control around NACA 0015
dc.typeArticle

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