Simulation of Aircraft Encounters with Perturbed Vortices Considering Unsteady Aerodynamic Effects
Simulation of Aircraft Encounters with Perturbed Vortices Considering Unsteady Aerodynamic Effects
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DOI：
10.2514/1.c032383
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发表时间：
2014-06
影响因子：
2.2
通讯作者：
David Bieniek;R. Luckner
中科院分区：
文献类型：
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作者：
David Bieniek;R. Luckner
如今，与尾流湍流相关的飞机间隔已成为全球机场容量的限制因素。详细了解潜在尾流遭遇的严重性对于安全修订当前国际民用航空组织的间隔要求是必要的。涡流遭遇模拟是了解涡流引起的扰动如何对相遇的飞机产生不利影响的重要部分。虽然大多数研究都集中在飞机与一对直涡流的遭遇上，但这项工作的重点是模拟在各种大气条件下观察到的扰动涡流的遭遇。此外，还提出了一种在计算涡流引起的力和力矩时考虑非定常空气动力效应的方法。这些效应对于高频范围的涡流引起的扰动变得尤其重要，因为它们可能在遇到扰动涡流时出现。这种组合莫...
Today, wake-turbulence-related aircraft separations are a limiting factor for the capacity of airports worldwide. A detailed knowledge about the severity of potential wake encounters is necessary for a safe revision of the current International Civil Aviation Organization separation requirements. Vortex encounter simulation is an important part in building an understanding how the encountering aircraft is adversely affected by the vortex-induced disturbances. Whereas most research has focused on aircraft encounters with a pair of straight vortices, this work focuses on the simulation of encounters with perturbed vortices as they are observed under various atmospheric conditions. In addition, a method to account for unsteady aerodynamic effects during the computation of vortex-induced forces and moments is presented. Those effects are becoming especially important for vortex-induced disturbances of a higher-frequency range as they may appear during encounters with perturbed vortices. This combination of mo...