空气动力学学报2012，Vol.30Issue(2)：223-227,5.
大型飞机扁平后体导流片减阻增稳研究
Research on chine of aerotransport after-body for drag reduction and stability enhancement
武宁 1段卓毅 1廖振荣 1邓一菊1
作者信息
- 1. 西安飞机设计研究所,陕西西安710089
- 折叠
摘要
Abstract
With flat after-body, large cargo aircraft have simpler structures, less weight, and the port machine has high dependability. However, the flat after-body induces strong transverse flow and flow with high adverse gradient when the aircraft cruises, so the boundary layer on the after-body is easier to separate. Separated flow increases pressure drag, and the separated vortex worsen the pressure distributions on the both side of vertical tail when the aircraft yaws. So the yawing stability is reduced. The chine is a special aerodynamic device which is used on flat after-body. It can restrain the birth and development of vortex flow. When the aircraft yaws, the chine can also enhance yawing stability by improving pressure distributions on the surfaces of vertical tail and after-body. Because of the functions of drag reduction and stability enhancement, the chine makes the transport aircraft with flat after-body having both high load efficiency and satisfied aerodynamic performance.关键词
扁平后体/导流片/减阻/航向稳定性Key words
flat after-body/ chine/ drug reduction/ directional stability分类
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武宁,段卓毅,廖振荣,邓一菊..大型飞机扁平后体导流片减阻增稳研究[J].空气动力学学报,2012,30(2):223-227,5.
