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Parametric study of aircraft response due to wake vortex encounter

机译:苏醒涡旋遇到的飞机应答的参数研究

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A simulation-based tool which creates mathematical functions that statistically model aircraft responses during various user-selectable wake encounters is presented. A wake vortex is created as a result of aircraft wings moving through the viscous air. The methods currently available to minimize the influence of wake vortices on the trailing aircraft can often impact airport capacity. As such, it is of interest to quantify the effect of different size wakes at different encounter geometries and with different aircraft types, flight configurations, speeds, and altitudes. By collecting simulation results generated using a high-fidelity computational-fluid-dynamics-based aircraft flight model combined with industry, government, and academic wake models, numerous encounter aircraft responses (e.g., pitch, roll, Gs, altitude deviation, etc.) can be calculated. Using the multi-variable least squares method, closed-form mathematical formulas can then be generated from the simulation results to allow for the calculation of other wake encounter situations. This paper presents the preliminary design and gives results from the simulation tool and the associated post-processing for generation of the wake encounter equations and their aircraft-type-specific coefficients. A simple case study is then presented to demonstrate some typical results.
机译:呈现了一种基于仿真的工具,它呈现了在各种用户可选择的唤醒期间统计模型飞机响应的数学函数。由于飞机翼移动通过粘性空气而产生尾瓦。目前可用于最大限度地减少尾部涡旋对尾部飞机的影响的方法通常会影响机场能力。因此,对不同遭遇几何形状的不同大小唤醒以及不同的飞机类型,飞行配置,速度和高度来说,它非常有趣。通过收集使用基于计算流体动力学高保真飞机的飞行模式与行业,政府和学术尾流模型,无数邂逅飞机应答(例如,俯仰,滚转,GS,高度偏差等)相结合产生的模拟结果可以计算。然后,从模拟结果中可以生成闭合性数学公式,以允许计算其他唤醒遇到情况的闭合性数学公式。本文介绍了初步设计,并提供了模拟工具的结果和相关的后处理,用于产生唤醒遇到方程及其飞机型特定系数。然后提出了一种简单的案例研究以展示一些典型的结果。

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