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Stability and Resolvment Analysis of Plane Couette Flow in the Distinguished Limit Re → ∞,α → 0 WITH Re ·α = O(1)

Dokoza, Toni ; Oberlack, Martin (2022)
Stability and Resolvment Analysis of Plane Couette Flow in the Distinguished Limit Re → ∞,α → 0 WITH Re ·α = O(1).
12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12). Osaka, Japan (online) (July 19 - July 22, 2022)
Konferenzveröffentlichung, Bibliographie

Kurzbeschreibung (Abstract)

In this work the plane Couette flow is being investigated for high Reynolds numbers Re → ∞ and small streamwise wavenumbers α → 0 in the distinguished limit Reα = Reα = O(1) using the temporal linear stability theory as well as the resolvent analysis approach. The influence of Reα on both the eigenfunctions obtained from the linear stability theory and the repsonse modes obtained from the resolvent analysis is investigated, while both modes are being compared in order to analyse the occurence of streamwise-elongated coherent structures within the plane Couette flow.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2022
Autor(en): Dokoza, Toni ; Oberlack, Martin
Art des Eintrags: Bibliographie
Titel: Stability and Resolvment Analysis of Plane Couette Flow in the Distinguished Limit Re → ∞,α → 0 WITH Re ·α = O(1)
Sprache: Englisch
Publikationsjahr: 19 Juli 2022
Buchtitel: Proceedings of the 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12)
Veranstaltungstitel: 12th International Symposium on Turbulence and Shear Flow Phenomena (TSFP12)
Veranstaltungsort: Osaka, Japan (online)
Veranstaltungsdatum: July 19 - July 22, 2022
URL / URN: http://www.tsfp-conference.org/proceedings/proceedings-of-ts...
Kurzbeschreibung (Abstract):

In this work the plane Couette flow is being investigated for high Reynolds numbers Re → ∞ and small streamwise wavenumbers α → 0 in the distinguished limit Reα = Reα = O(1) using the temporal linear stability theory as well as the resolvent analysis approach. The influence of Reα on both the eigenfunctions obtained from the linear stability theory and the repsonse modes obtained from the resolvent analysis is investigated, while both modes are being compared in order to analyse the occurence of streamwise-elongated coherent structures within the plane Couette flow.

Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy)
16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy) > Turbulenz- und Verbrennungsforschung
Hinterlegungsdatum: 15 Nov 2022 07:41
Letzte Änderung: 15 Nov 2022 07:42
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