Kirz, Jochen und Rudnik, Ralf (2017) DLR TAU Simulations for the Second AIAA Sonic Boom Prediction Workshop. AIAA Aviation and Aeronautics Forum and Exposition (AVIATION), 2017-06-05 - 2017-06-09, Denver, CO, USA. doi: 10.2514/6.2017-3253.
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Kurzfassung
The accurate prediction of the sonic boom is essential for the development of a future low boom supersonic aircraft. In this paper geometries and grids provided by the Second AIAA Sonic Boom Prediction Workshop are used to improve a best practice for predicting near field pressure signatures with the DLR TAU code. The workshop provided low boom geometries with different complexities, such as an axisymmetric body, a delta-wing body and a full aircraft configuration with a cruciform tail and an engine. Results for the DLR TAU simulations on the workshop-provided grids are presented for different grid refinement levels using both, Euler and RANS simulations. In addition to the provided grids, mixed-element grids with varying setups are generated. The positions of the shocks and expansions are widely identical for all medium to fine grids but vary for very coarse grids due to the surface triangulation. The pressure magnitude at shocks and expansions is higher for simulations on fine grids compared to coarse grids. It is shown that the influence of the viscosity on the pressure signatures is more significant than the influence of the grid resolution. The agreement between TAU solutions and other participants' solutions is good.
elib-URL des Eintrags: | https://elib.dlr.de/114024/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||
Titel: | DLR TAU Simulations for the Second AIAA Sonic Boom Prediction Workshop | ||||||||||||
Autoren: |
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Datum: | Juni 2017 | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
DOI: | 10.2514/6.2017-3253 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | TAU, low boom, near field, Euler, RANS, grid generation | ||||||||||||
Veranstaltungstitel: | AIAA Aviation and Aeronautics Forum and Exposition (AVIATION) | ||||||||||||
Veranstaltungsort: | Denver, CO, USA | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 5 Juni 2017 | ||||||||||||
Veranstaltungsende: | 9 Juni 2017 | ||||||||||||
Veranstalter : | AIAA | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Flugzeuge | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation und Validierung (alt), L - Konzepte und Integration (alt) | ||||||||||||
Standort: | Braunschweig | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge | ||||||||||||
Hinterlegt von: | Kirz, Jochen | ||||||||||||
Hinterlegt am: | 13 Dez 2017 13:51 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 20:18 |
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