A numerical investigation of wind tunnel model deformations caused by the twin-sting support system
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| Titel: | A numerical investigation of wind tunnel model deformations caused by the twin-sting support system |
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| Autoren: | Flores Le Roux, Roberto Maurice, Ortega, Enrique, Oñate Ibáñez de Navarra, Eugenio |
| Weitere Verfasser: | Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria, Universitat Politècnica de Catalunya. L'AIRE - Laboratori Aeronàutic i Industrial de Recerca i Estudis, Centre Internacional de Mètodes Numèrics en Enginyeria |
| Quelle: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Verlagsinformationen: | 2009. |
| Publikationsjahr: | 2009 |
| Schlagwörter: | Classificació AMS::65 Numerical analysis::65D Numerical approximation and computational geometry, Anàlisi numèrica, Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics [Àrees temàtiques de la UPC], 65 Numerical analysis::65D Numerical approximation and computational geometry [Classificació AMS], Research Report CIMNE, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics, Numerical analysis |
| Beschreibung: | This work presents a wing deformation analysis of a twin-sting-mounted commercial aircraft model. Twin-sting arrangements minimize flow disturbances around the model fuselage and tail; on the other hand, they cause important changes in the flow field around the wing and also increase aerodynamic interference at the wing and aeroplastic effects on the wing. In some cases, these effects can alter the normal downwash developed behind the wing, modifying the flow pattern at the tail. Consequently, when tail aerodynamics is a major concern, this kind of support interference should be carefully evaluated. The methodology developed in this work employs an unstructured FEM-based flow solver for computing aerodynamic loads. These loads are then transferred to a finite element structural model in order to assess the geometrical deformation of the wing caused by the torsional moment exerted by the supporting mechanism. The analysis described involves there different twin-sting support configurations taking into account angle of attack variations and Mach numbers spanning from subsonic to high transonic ranges. |
| Publikationsart: | Report |
| Dateibeschreibung: | application/pdf |
| Zugangs-URL: | http://hdl.handle.net/2117/172211 https://hdl.handle.net/2117/172211 |
| Dokumentencode: | edsair.dedup.wf.002..b5f5d6893c7da3b6c5c3852db8126a62 |
| Datenbank: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstract: | This work presents a wing deformation analysis of a twin-sting-mounted commercial aircraft model. Twin-sting arrangements minimize flow disturbances around the model fuselage and tail; on the other hand, they cause important changes in the flow field around the wing and also increase aerodynamic interference at the wing and aeroplastic effects on the wing. In some cases, these effects can alter the normal downwash developed behind the wing, modifying the flow pattern at the tail. Consequently, when tail aerodynamics is a major concern, this kind of support interference should be carefully evaluated. The methodology developed in this work employs an unstructured FEM-based flow solver for computing aerodynamic loads. These loads are then transferred to a finite element structural model in order to assess the geometrical deformation of the wing caused by the torsional moment exerted by the supporting mechanism. The analysis described involves there different twin-sting support configurations taking into account angle of attack variations and Mach numbers spanning from subsonic to high transonic ranges. |
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