民用飞机ADHF构型扰流板下偏气动特性研究

Aeronautical Computing Technique(2021)

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Abstract
采用计算流体力学方法,针对伴随扰流板下偏铰链襟翼构型典型二维多段翼进行数值模拟,研究了扰流板下偏对多段翼气动特性的影响.结果表明:1)缝道参数一致的情况下,扰流板下偏可明显提升增升构型升力;2)随迎角增大,襟翼下偏与扰流板下偏对升力的提升量均存在衰减,但扰流板下偏衰减更为明显,20°迎角下扰流板偏转构型升力增量约为0°迎角的15%,但20°迎角下襟翼偏转构型升力增量约为0°迎角的40%.
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