von Soldenhoff, Richard und Lüdeke, Heinrich (2024) Interaction of Boundary Layer and Suction Chamber of a Laminarization System. AIAA Journal. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J064184. ISSN 0001-1452.
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Offizielle URL: https://arc.aiaa.org/doi/10.2514/1.J064184
Kurzfassung
To investigate the interaction of Tollmien-Schlichting instabilities in a boundary layer over a porous surface with an underlying suction chamber, two-dimensional simulations solving the complete Navier-Stokes equations are conducted. It is found that the coupling of disturbances in the boundary layer and in the chamber leads to an increased mode amplification. The additional growth rate depends on the pore geometries, more generally on the impedance of the porous surface. It is shown that the amplitude growth is not dependent on the suction flow through the pores, assuming the boundary layer profile remains constant. This is realized by the use of source terms in the boundary layer. Furthermore, it is demonstrated that partitioning the chamber can mitigate the additional amplification. In this case, disturbances are prevented from propagating inside the suction chamber.
elib-URL des Eintrags: | https://elib.dlr.de/210431/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Interaction of Boundary Layer and Suction Chamber of a Laminarization System | ||||||||||||
Autoren: |
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Datum: | 26 November 2024 | ||||||||||||
Erschienen in: | AIAA Journal | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
DOI: | 10.2514/1.J064184 | ||||||||||||
Verlag: | American Institute of Aeronautics and Astronautics (AIAA) | ||||||||||||
ISSN: | 0001-1452 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | HLFC, Impedance, Transition | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugzeugtechnologien und Integration | ||||||||||||
Standort: | Braunschweig | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge | ||||||||||||
Hinterlegt von: | von Soldenhoff, Richard | ||||||||||||
Hinterlegt am: | 10 Dez 2024 11:29 | ||||||||||||
Letzte Änderung: | 10 Dez 2024 11:29 |
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