K-1342 デルタ翼の全迎え角空力特性とその流れ構造 : 第2報,空力特性と後流構造に及ぼすアスペクト比の影響(S15-13 翼のはく離)(S15 噴流・はく離流れの計測と制御)

概要

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Aerodynamic characteristics and flow structures in wakes of delta wings with aspect ratios of 1.28〜4.0 have been investigated at angle of attack 0 ° to 90 °. The Reynolds number based on the maximum chord length is 1.3×10^5. The delta wings with λ=1.2〜2.0 indicate mostly similar C_<Lmax> and α_<C_<Lmax>>, whereas those for delta wings with λ=2.4〜4.0 change gradually with an increase in λ, but in the unstalled and full stalled conditions, the aerodynamic characteristics are quite similar independently of λ. In the unstalled region, clear trailing vortices are formed in the wakes and ring-type vortices which correspond to their aspect ratios are formed.
社団法人日本機械学会の論文
2001-08-22