跨声串列转子及前后排叶片匹配特性分析

doi:CNKI:11-1929/V.20100330.1304.001

Abstract

Abstract: With transonic tandem rotor technology, fan stage design is accomplished to produce total pressure ratio of 2.25 and responding loading coefficient of 0.55 at corrected tip speed of 381m/s. Based on the simulation results, the distinctive matching characteristic between forward blades (FB) and aft blades (AB) is analyzed, as well as the reason for its difference from conventional multistage compressor. Analytic correlation of aerodynamic parameter between the FB and AB is deduced and testified further, which provides a mathematic and physical model to elementary design for tandem rotor in conventional compressor design system. The result indicates that while the operating point is moving from choking to near stall condition, the characteristic of FB is identical with conventional rotor, whereas the total temperature rise and total pressure ratio of AB are declining in certain analytic rules. The model in this paper is competent to predict the characteristic of AB.

Key words: transonic tandem rotor, forward and aft blades, matching characteristic, aerodynamic design, highly loaded fan

CLC Number:

V231.3

ZHAO Bin, LIU Baojie. Analysis of Transonic Tandem Rotor and Matching Characteristic of Forward and Aft Blades[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(6): 978-987.

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Analysis of Transonic Tandem Rotor and Matching Characteristic of Forward and Aft Blades

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