Assessment of dynamic pairwise wake vortex separations for approach and landing at Vienna airport
Assessment of dynamic pairwise wake vortex separations for approach and landing at Vienna airport
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DOI：
10.1016/j.ast.2021.106618
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发表时间：
2019-06
影响因子：
5.6
通讯作者：
F. Holzäpfel;Lukas Strauss;C. Schwarz
中科院分区：
文献类型：
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作者：
F. Holzäpfel;Lukas Strauss;C. Schwarz
尾迹涡旋预测系统WSVS(WirbelSchleppenVorhersageSystem)是为了在不影响安全的情况下，通过采用动态调整的飞机进场和着陆间隔来战术地增加机场容量而开发的。为此，WSVS考虑了所涉及的飞机类型配对、当时的天气条件以及由此产生的尾迹涡旋行为。蒙特卡罗模拟研究表明，WSVS被很好地调整到合理的安全水平。这项模拟研究评估了尾涡仍在跟随飞机周围限定半径内徘徊的概率，并将该概率与在五个主要国际机场收集的测量数据进行了比较。通过使用在维也纳国际机场收集的12个月的交通和天气预报数据，评估了WSVS优化飞机分离的潜力。建立了分离还原潜力的分析，并与现行法规进行了比较。根据单个尾涡的行为和尾迹湍流分离的统计分布，讨论了主流逆风和侧风条件的相关性。结果表明，对于任何需要尾涡分离最小值的飞机类型组合，安全减少飞机分离的可能性主要存在于足够强的侧风条件下。
The Wake Vortex Prediction System WSVS (WirbelSchleppenVorhersageSystem) has been developed to tactically increase airport capacity by employing dynamically adjusted aircraft separations for approach and landing without compromising safety. For this purpose, the WSVS considers the involved aircraft type pairing, the prevailing weather conditions, and the resulting wake vortex behavior. A Monte Carlo simulation study demonstrates that the WSVS is well adjusted to a reasonable level of safety. The simulation study evaluates the probability that wake vortices still linger within defined radii around the follower aircraft and compares this probability to measurement data collected at five major international airports. The potential of the WSVS to optimize aircraft separations is assessed by employing twelve months of traffic and weather prediction data collected at Vienna International Airport. Analyses of the separation reduction potential are established and compared to current regulations. Dependencies on prevailing headwind and crosswind conditions are discussed in terms of individual wake vortex behavior and statistical distributions of wake turbulence separations. The results indicate that substantial potential for safely reduced aircraft separations exists mainly under sufficiently strong crosswind conditions for any aircraft type combination requiring wake vortex separation minima.