Sonoda, Toyotaka und Schnell, Rainer (2013) The Effect of Reynolds Number on a Modern Transonic Low-Aspect-Ratio Fan Rotor in a Small Turbofan Engine. In: Proceedings of the ASME Turbo Expo (GT2013-95447). ASME Turbo Expo 2013, 2013-06-03 - 2013-06-07, San Antonio, Texas, USA.
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Kurzfassung
In this paper, Reynolds effects on a modern transonic low-aspect-ratio fan rotor (Baseline) and the re-designed (optimized) rotor performance are presented with application to a small turbofan engine. The re-design has been done using an in-house numerical optimization system in Honda and the confirmation of the performance was carried out using DLR’s TRACE RANS stage code, assessed with respect to experimental data obtained from a small scale compressor rig in Honda. The baseline rotor performance is evaluated at two Reynolds number conditions, a high Reynolds condition (corresponding to a full engine scale size) and a low Reynolds number condition (corresponding to the small scale compressor rig size), using standard ISA conditions. The performance of the optimized rotor was evaluated at the low Reynolds number condition. The CFD results show significant discrepancies in the rotor efficiency (about 1% at cruise) between these two points due to the different Reynolds numbers. The optimized rotor’s efficiency is increased compared to the baseline. A unique negative curvature region close to the leading edge on the pressure surface of the optimized rotor is one of the reasons why the optimized rotor is superior than the baseline
elib-URL des Eintrags: | https://elib.dlr.de/82708/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||
Titel: | The Effect of Reynolds Number on a Modern Transonic Low-Aspect-Ratio Fan Rotor in a Small Turbofan Engine | ||||||||||||
Autoren: |
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Datum: | Juni 2013 | ||||||||||||
Erschienen in: | Proceedings of the ASME Turbo Expo | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Turbomachinery, Rig Test, Reynolds Effects, Fan | ||||||||||||
Veranstaltungstitel: | ASME Turbo Expo 2013 | ||||||||||||
Veranstaltungsort: | San Antonio, Texas, USA | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsbeginn: | 3 Juni 2013 | ||||||||||||
Veranstaltungsende: | 7 Juni 2013 | ||||||||||||
Veranstalter : | American Society for Mechanical Engineering | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Antriebe (alt) | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L ER - Antriebsforschung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Verdichtertechnologien (alt) | ||||||||||||
Standort: | Köln-Porz | ||||||||||||
Institute & Einrichtungen: | Institut für Antriebstechnik > Fan- und Verdichter | ||||||||||||
Hinterlegt von: | Schnell, Dr.-Ing. Rainer | ||||||||||||
Hinterlegt am: | 20 Jun 2013 11:05 | ||||||||||||
Letzte Änderung: | 24 Apr 2024 19:49 |
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