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首页> 外文期刊>The Aeronautical Journal >Optimising wing lift distribution to minimise wake vortex hazard
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Optimising wing lift distribution to minimise wake vortex hazard

机译:优化机翼升力分布以最大程度地降低尾流涡流危害

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摘要

The aim of this work is to investigate how the wake vortex hazard generated by an aircraft can be reduced by modifying the wing lift distribution. The wake associated with a given lift distribution is simulated with a two-dimensional, inviscid 'vortex method'. A numerical optimisation technique is used to guide the modifications so that a hazard measure, based on the rolling moment induced on a following aircraft encountering the wake. is minimised. The results show that a significant (~20-25/100) reduction in hazard compared with conventional high-lift configurations can be achieved, via lift distributions that have a local minimum between the regions contributing to the flap and tip vortices.
机译:这项工作的目的是研究如何通过修改机翼升力分布来减少飞机产生的尾流涡流危害。与给定升力分布相关的尾流是通过二维无粘性的“涡旋法”模拟的。数值优化技术用于指导修改,以便根据在遇到尾流的后续飞机上引起的侧倾力矩来采取危险措施。被最小化。结果表明,与传统的高升力配置相比,通过在造成襟翼和尖端涡旋的区域之间具有局部最小值的升力分布,可以显着降低危害(〜20-25 / 100)。

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