Evolution of vortices in the wake of an ARJ21 airplane: Application of the lift-drag model

Evolution of vortices in the wake of an ARJ21 airplane: Application of the lift-drag model
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ARJ21飞机尾迹涡的演化:升力阻力模型的应用

DOI:
10.1016/j.taml.2020.01.054
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发表时间:
2020-11
影响因子:
3.4
通讯作者:
Gui-Xiang Cui
Gui-Xiang Cui
中科院分区:
工程技术4区
文献类型:
--
作者:
Wei-Jun Pan;Wei-Xi Huang;Jun-Duo Zhang;Meng-Da Lin;Qing-Hai Zuo;Gui-Xiang Cui

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尾流分离对飞机着陆安全至关重要,是影响机场运行效率的重要因素。尾流涡的近地演化特征是尾流分离系统设计的基础。在这项研究中,我们使用基于自适应网格的大涡模拟分析了国产飞机ARJ21尾迹中涡的近地演变,该尾迹由升阻模型初始化。详细讨论了主翼、襟翼和水平尾翼形成的尾流涡的演化过程。水平尾涡最弱,消散迅速,而襟翼涡最强,诱导叶尖涡与之合并。ARJ21的水平尾翼和襟翼对尾迹涡的环流演变、高度变化和运动轨迹影响不大。因此,可以用传统的尾流涡模型来分析尾流涡的远场演化。
Wake separation is crucial to aircraft landing safety and is an important factor in airport operational efficiency. The near-ground evolution characteristics of wake vortices form the foundation of the wake separation system design. In this study, we analysed the near-ground evolution of vortices in the wake of a domestic aircraft ARJ21 initialised by the lift-drag model using large eddy simulations based on an adaptive mesh. Evolution of wake vortices formed by the main wing, flap and horizontal tail was discussed in detail. The horizontal tail vortices are the weakest and dissipate rapidly, whereas the flap vortices are the strongest and induce the tip vortex to merge with them. The horizontal tail and flap of an ARJ21 do not significantly influence the circulation evolution, height change and movement trajectory of the wake vortices. The far-field evolution of wake vortices can therefore be analysed using the conventional wake vortex model.
使用浸入边界法对水下航行体模型周围流动的大涡模拟
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