Bursting detection by Variable-Interval Time-Averaging (VITA) on spanwise oscillated turbulent channel flow

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dc.contributor.authorAltintas, Atilla
dc.date.accessioned2024-09-29T16:01:09Z
dc.date.available2024-09-29T16:01:09Z
dc.date.issued2016
dc.departmentKarabük Üniversitesien_US
dc.description3rd International Conference on Mechanics and Mechatronics Research (ICMMR) -- JUN 15-17, 2016 -- Chongqing, PEOPLES R CHINAen_US
dc.description.abstractThe main aim of the study is to detect the bursting phenomenon in spanwise oscillated Lorentz force applied turbulent channel flow. Regarding the biggest reason of the turbulence production is known as the bursting phenomenon, detecting the decrease on it could be a very effective tool as an estimation of the effectiveness of the applied control strategy to the flow. The data gained by DNS (Direct numerical simulations) at low Reynolds number (Re-tau = 180 based on the wall-shear velocity and channel half width). The Variable-Interval Time-Averaging (VITA) technique has been applied to three different streamwise locations for both applied force and no-force cases. The Lorentz force applied only to the lower wall. In first step the very well known drag reduction is observed, we compared the drag reduction results for the applied force and no-force cases both for the lower and upper wall of the channel. The bursting detection results are given statistically, which clearly shows that bursting phenomenon frequency tend to decrease as a result of the applied Lorentz force. It is also has shown that associated turbulence production has similar trend.en_US
dc.identifier.doi10.1051/matecconf/20167707002
dc.identifier.issn2261-236X
dc.identifier.scopus2-s2.0-84994045473en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1051/matecconf/20167707002
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5533
dc.identifier.volume77en_US
dc.identifier.wosWOS:000387753100089en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherE D P Sciencesen_US
dc.relation.ispartof2016 3rd International Conference On Mechanics and Mechatronics Research (Icmmr 2016)en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBoundary-Layeren_US
dc.titleBursting detection by Variable-Interval Time-Averaging (VITA) on spanwise oscillated turbulent channel flowen_US
dc.typeConference Objecten_US

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