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Development and Validation of a Partitioned Fluid-Structure Solver for Transonic Panel Flutter with Focus on Boundary Layer Effects

Alder, Marko (2014) Development and Validation of a Partitioned Fluid-Structure Solver for Transonic Panel Flutter with Focus on Boundary Layer Effects. In: 44th AIAA Fluid Dynamics Conference 2014. 44th AIAA Fluid Dynamics Conference, 2014-06-16 - 2014-06-20, Atlanta. doi: 10.2514/6.2014-2448. ISSN 0001-1452.

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Kurzfassung

A partitioned fluid-structure coupling code for transonic panel flutter has been developed and validated. The Reynolds-averaged Navier-Stokes equations are solved numerically by means of an implicit finite volume method to account for nonlinear aerodynamics, as there are shock waves and a viscous boundary layer at the panel surface. An implicit finite element formulation of the structural equations as well as a Galerkin solution of the von-Kármán plate equation are employed to solve elastic panel deformations with respect to geometric nonlinearities. A detailed validation process is presented in this paper for high subsonic and low supersonic Mach numbers. This comprises a discussion of available results from literature with the objective to propose a guideline for validation purposes of partitioned panel flutter solvers. Thereupon the code is used for studies on the impact of turbulent boundary layer characteristics on aeroelastic stability boundaries and post-flutter. An evaluation of flutter modes and frequencies in the post-flutter domain as well as a discussion of the corresponding flow phenomena is presented.

elib-URL des Eintrags:https://elib.dlr.de/89924/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Development and Validation of a Partitioned Fluid-Structure Solver for Transonic Panel Flutter with Focus on Boundary Layer Effects
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Alder, Markomarko.alder (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2014
Erschienen in:44th AIAA Fluid Dynamics Conference 2014
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.2514/6.2014-2448
ISSN:0001-1452
Status:veröffentlicht
Stichwörter:Panel flutter, transonic, fluid-structure coupling, unsteady aerodynamics
Veranstaltungstitel:44th AIAA Fluid Dynamics Conference
Veranstaltungsort:Atlanta
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:16 Juni 2014
Veranstaltungsende:20 Juni 2014
Veranstalter :AIAA Aviation
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Raumtransport
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):R - Leitprojekt - Forschungsverbund Oberstufe (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Raumfahrzeuge
Hinterlegt von: Alder, Marko
Hinterlegt am:03 Sep 2014 13:29
Letzte Änderung:24 Apr 2024 19:55

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