The invention relates to a profiled air flow structure comprising a body (62) and acoustically absorbent porous regions (52), having an upstream, a downstream, a leading edge (164) upstream and/or a profiled trailing edge downstream, and having, along a leading edge line (164a) and/or a trailing edge line (164b), a serrated profile (28) having a succession of peaks (30) and troughs (32). The acoustically absorbent porous regions (52) form, locally, minima for the troughs (32) and thus define, with the body (62), the line of the serrated profile (28) at the leading edge and/or at the trailing edge.
本发明涉及一种气流异型结构,其包括主体(62)和多孔吸声区域(52),具有上游、下游、上游前缘(164)和/或下游异型后缘,并且沿着前缘线(164a)和/或后缘线(164b)具有锯齿形轮廓线(28),所述锯齿形轮廓线显示一系列齿(30)和凹陷(32)。所述多孔吸声区域(52)局部地形成所述凹部(32)的底部,从而与所述主体(62)一起在所述前缘和/或后缘限定所述锯齿形轮廓线(28)。
PROFILED STRUCTURE AND ASSOCIATED TURBOMACHINE
表面经过处理的锯齿形轮廓线结构
2020-09-29
Patent
Electronic Resource
Chinese
IPC: | F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64C AEROPLANES , Flugzeuge / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / F15D FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS , Strömungsdynamik, d.h. Verfahren oder Vorrichtungen zum Beeinflussen der Strömung von Gasen oder Flüssigkeiten |
PROFILED STRUCTURE FOR AN AIRCRAFT OR TURBOMACHINE FOR AN AIRCRAFT
European Patent Office | 2020
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