5 Advanced Design HP Compressor Test NEWAC(5设计先进惠普 NEWAC压缩机测试).pdfVIP

5 Advanced Design HP Compressor Test NEWAC(5设计先进惠普 NEWAC压缩机测试).pdf

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5 Advanced Design HP Compressor Test NEWAC(5设计先进惠普 NEWAC压缩机测试)

European Workshop on New Aero Engine Concepts Munich, 30 June – 1 July 2010 Advanced Design HP Compressor Test Mark Walker, Rolls-Royce Plc 1 NEWAC is an Integrated Project Co-funded by the European Commission within the Sixth Framework Programme © 2010 Rolls-Royce plc and NEWAC (2002-2006) under Thematic Priority 4 Aeronautics and Space. European Workshop on New Aero Engine Concepts Munich, 30 June – 1 July 2010 Background • A higher OPR cycle with inter-cooling leads to a smaller core size • A small core size leads to a challenging compressor design: – Reduced aspect ratios – Large rotor tip clearance/height values –– TradeTrade--off between blade speed and blade height for a fixedoff between blade speed and blade height for a fixed corrected corrected shaft speed • Improved core component efficiencies are required to meet these challenges and maximise the overall SFC benefit for an inter-cooled cycle • Advanced 3D CFD has been used iteratively to develop design improvements • Rig test has validated the predicted improvements 2 NEWAC is an Integrated Project Co-funded by the European Commission within the Sixth Framework Programme

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