Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 012142 |
| Fachzeitschrift | IOP Conference Series: Materials Science and Engineering |
| Jahrgang | 643 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - 13 Nov. 2019 |
| Veranstaltung | International Scientific Electric Power Conference 2019, ISEPC 2019 - Saint Petersburg, Russland Dauer: 23 Mai 2019 → 24 Mai 2019 |
Abstract
Compact, electrically-driven compressors are a core component of a novel active high-lift system for future commercial aircraft. A newly-developed aeromechanical optimization process was used to design the compressor stage. The optimization resulted in an unusual mixed-flow compressor design with very low aspect ratio blades and a high rotational speed of up to 60,000 rpm. Due to the unusual design, experimental validation of the performance predictions by means of CFD is necessary. This paper presents the first experimental results obtained using a preliminary prototype at part-speed, i.e. rotational speeds from 20,000 to 30,000 rpm. The experimentally-determined pressure ratios deviate up to 1.5 %, the polytropic efficiencies up to 4 percentage points from the CFD predictions. Besides the deficiencies of available turbulence models, the underestimation of overall losses is presumably due to the omission of the volute in the CFD model. An experimental validation of the CFD predictions at full-speed is under way.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Ingenieurwesen (insg.)
- Allgemeiner Maschinenbau
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in: IOP Conference Series: Materials Science and Engineering, Jahrgang 643, Nr. 1, 012142, 13.11.2019.
Publikation: Beitrag in Fachzeitschrift › Konferenzaufsatz in Fachzeitschrift › Forschung › Peer-Review
}
TY - JOUR
T1 - Experimental validation of a compact mixed-flow compressor for an active high-lift system
AU - Kauth, Felix
AU - Maroldt, Niklas
AU - Seume, Joerg R.
N1 - Funding information: The authors would like to thank the German Research Foundation (DFG) for supporting this fundamental research in active high-lift systems for future aircraft as part of the Collaborative Research Centre 880 (Sonderforschungsbereich SFB 880). Moreover, the authors thank the German Aerospace Center (DLR) for the permission to use the solver TRACE.
PY - 2019/11/13
Y1 - 2019/11/13
N2 - Compact, electrically-driven compressors are a core component of a novel active high-lift system for future commercial aircraft. A newly-developed aeromechanical optimization process was used to design the compressor stage. The optimization resulted in an unusual mixed-flow compressor design with very low aspect ratio blades and a high rotational speed of up to 60,000 rpm. Due to the unusual design, experimental validation of the performance predictions by means of CFD is necessary. This paper presents the first experimental results obtained using a preliminary prototype at part-speed, i.e. rotational speeds from 20,000 to 30,000 rpm. The experimentally-determined pressure ratios deviate up to 1.5 %, the polytropic efficiencies up to 4 percentage points from the CFD predictions. Besides the deficiencies of available turbulence models, the underestimation of overall losses is presumably due to the omission of the volute in the CFD model. An experimental validation of the CFD predictions at full-speed is under way.
AB - Compact, electrically-driven compressors are a core component of a novel active high-lift system for future commercial aircraft. A newly-developed aeromechanical optimization process was used to design the compressor stage. The optimization resulted in an unusual mixed-flow compressor design with very low aspect ratio blades and a high rotational speed of up to 60,000 rpm. Due to the unusual design, experimental validation of the performance predictions by means of CFD is necessary. This paper presents the first experimental results obtained using a preliminary prototype at part-speed, i.e. rotational speeds from 20,000 to 30,000 rpm. The experimentally-determined pressure ratios deviate up to 1.5 %, the polytropic efficiencies up to 4 percentage points from the CFD predictions. Besides the deficiencies of available turbulence models, the underestimation of overall losses is presumably due to the omission of the volute in the CFD model. An experimental validation of the CFD predictions at full-speed is under way.
UR - http://www.scopus.com/inward/record.url?scp=85076156407&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/643/1/012142
DO - 10.1088/1757-899X/643/1/012142
M3 - Conference article
AN - SCOPUS:85076156407
VL - 643
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 1
M1 - 012142
T2 - International Scientific Electric Power Conference 2019, ISEPC 2019
Y2 - 23 May 2019 through 24 May 2019
ER -