Wind-tunnel tests of a heavy-class helicopter optimised for drag reduction

被引：4

作者：

Gibertini, G. ^{[1
]}

Zanotti, A. ^{[1
]}

Droandi, G. ^{[1
]}

Grassi, D. ^{[1
]}

Campanardi, G. ^{[1
]}

Auteri, F. ^{[1
]}

Aceti, A. ^{[1
]}

Le Pape, A. ^{[2
]}

机构：

[1] Politecn Milan, Dipartimento Sci & Tecnol Aerospaziali, Milan, Italy

[2] Off Natl Etud & Rech Aerosp, Appl Aerodynam Dept, 8 Rue Vertugadins, F-92190 Meudon, France

来源：

AERONAUTICAL JOURNAL | 2016年 / 120卷 / 1231期

关键词：

Drag reduction; helicopter; wind tunnel; particle image velocimetry;

D O I：

10.1017/aer.2016.60

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Wind-tunnel tests of a heavy-class helicopter model were carried out to evaluate the effectiveness of several components optimised for drag reduction by computational fluid dynamics analysis. The optimised components included different hub-cap configurations, a fairing for blade attachments and the sponsons. Moreover, the effects of vortex generators positioned on the back ramp were investigated. The optimisation effect was evaluated by comparison of the drag measurements carried out for both the original and the optimised helicopter configurations. The comprehensive experimental campaign involved the use of different measurement techniques. Indeed, pressure measurements and stereo particle image velocimetry surveys were performed to achieve a physical insight about the results of load measurements. The test activity confirms the achievement of an overall reduction of about 6% of the original model drag at cruise attitude.

引用

页码：1446 / 1467

页数：22

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