Near field study of vortex attenuation using wing-tip blowing

被引：0

作者：

Simpson, R.G. ^{[1
]}

Ahmed, N.A. ^{[1
]}

Archer, R.D. ^{[1
]}

机构：

[1] Department of Aerospace Engineering, University of NSW, Sydney, NSW, Australia

来源：

Aeronautical Journal | 2002年 / 106卷 / 1057期

关键词：

Aerodynamics - Aircraft - Drag - Electromagnetic wave attenuation - Mass transfer - Velocity measurement - Vortex flow - Wakes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The investigation of wind-tip blowing as a form of attenuating the trailing vortex generated by a rectangular wing was discussed. The results at one semi-span downstream showed significant reductions in the tangential velocities in the vortex core with the velocity reduced to approximately 55% of the no blowing case. The diameter of the core was also increased by approximately 2-5 times and the vorticity was significantly reduced and redistributed due to the presence of blowing. A decrease in induced drag with the addition of blowing was also evident from the outboard movement of the vortex center. Axial velocity measurement showed a reversal from a rearward direction for the no blowing case to a forward direction for the blowing cases.

引用

页码：117 / 120