Details
| Original language | English |
|---|---|
| Title of host publication | Turbomachinery |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (electronic) | 9780791856635, 9780791856635 |
| Publication status | Published - 12 Aug 2015 |
| Event | ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015 - Montreal, Canada Duration: 15 Jun 2015 → 19 Jun 2015 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 2A |
Abstract
This paper presents the design of an aspirated stator of a four-stage high-speed axial compressor. The aspiration of near wall fluid at the suction side of the first stator is designed numerically by means of DoE (Design of Experiments). The design objective is a reduction or complete suppression of hub corner separation at off-design conditions. As operating point for the CFD-based design process, the last numerically stable operating point near the stall limit of the reference configuration at 80% of the design speed is chosen. As DoE factors the aspiraton velocity, the chordwise position, and the axial by radial dimensions of the aspiration slot are varied. Their effects on the two target values overall isentropic efficiency and total pressure ratio are investigated. All evaluated configurations show significant improvements in stage performance of all compressor stages because of a reduction of hub corner separation. Based on the DoE correlation factors an optimization is performed. The optimum configuration shows an increase in overall isentropic efficiency Δηis of 1.3% to 90.98% whereas the total pressure ratio π is raised by 0.08 to 2.08.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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Turbomachinery. American Society of Mechanical Engineers(ASME), 2015. (Proceedings of the ASME Turbo Expo; Vol. 2A).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Design of an Aspirated Compressor Stator by Means of DoE
AU - Siemann, Jan
AU - Seume, Joerg R.
PY - 2015/8/12
Y1 - 2015/8/12
N2 - This paper presents the design of an aspirated stator of a four-stage high-speed axial compressor. The aspiration of near wall fluid at the suction side of the first stator is designed numerically by means of DoE (Design of Experiments). The design objective is a reduction or complete suppression of hub corner separation at off-design conditions. As operating point for the CFD-based design process, the last numerically stable operating point near the stall limit of the reference configuration at 80% of the design speed is chosen. As DoE factors the aspiraton velocity, the chordwise position, and the axial by radial dimensions of the aspiration slot are varied. Their effects on the two target values overall isentropic efficiency and total pressure ratio are investigated. All evaluated configurations show significant improvements in stage performance of all compressor stages because of a reduction of hub corner separation. Based on the DoE correlation factors an optimization is performed. The optimum configuration shows an increase in overall isentropic efficiency Δηis of 1.3% to 90.98% whereas the total pressure ratio π is raised by 0.08 to 2.08.
AB - This paper presents the design of an aspirated stator of a four-stage high-speed axial compressor. The aspiration of near wall fluid at the suction side of the first stator is designed numerically by means of DoE (Design of Experiments). The design objective is a reduction or complete suppression of hub corner separation at off-design conditions. As operating point for the CFD-based design process, the last numerically stable operating point near the stall limit of the reference configuration at 80% of the design speed is chosen. As DoE factors the aspiraton velocity, the chordwise position, and the axial by radial dimensions of the aspiration slot are varied. Their effects on the two target values overall isentropic efficiency and total pressure ratio are investigated. All evaluated configurations show significant improvements in stage performance of all compressor stages because of a reduction of hub corner separation. Based on the DoE correlation factors an optimization is performed. The optimum configuration shows an increase in overall isentropic efficiency Δηis of 1.3% to 90.98% whereas the total pressure ratio π is raised by 0.08 to 2.08.
UR - http://www.scopus.com/inward/record.url?scp=84954349200&partnerID=8YFLogxK
U2 - 10.1115/gt2015-42474
DO - 10.1115/gt2015-42474
M3 - Conference contribution
AN - SCOPUS:84954349200
T3 - Proceedings of the ASME Turbo Expo
BT - Turbomachinery
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015
Y2 - 15 June 2015 through 19 June 2015
ER -