FLOWFIELD STUDY OF A CLOSE-COUPLED CANARD CONFIGURATION

被引：17
作者：
HOWARD, RM
OLEARY, JF
机构：
[1] Naval Postgraduate School, Monterey, CA
[2] Naval Air Systems Command, Arlington, VA, 22203
来源：
JOURNAL OF AIRCRAFT | 1994年 / 31卷 / 04期
关键词：
D O I：
10.2514/3.46578
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A wind-tunnel study was completed examining the flowfield behavior of the canard-vortex/wing-vortex interaction for a close-coupled canard configuration in the post-stall regime. Three cross-planes were mapped in the lee flowfield using a five-hole pressure probe. The mappings traced the canard and wing vortices as they moved downstream, and gave clear evidence that the canard vortex provided the mechanism for flow reattachment over the inboard wing section. The previously separated flow became a coherent wing leading-edge vortex under the canard vortex influence. A tertiary vortex at the canard-fuselage juncture was revealed; this vortex may have an impact upon the resulting flow, and would not be evident in studies of bodiless wings with canards. Surface flow visualization aided in revealing the effects of the post-stall behavior.
引用
收藏
页码：908 / 914
页数：7
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