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本文论述了采用周期性质量引射作为激振的手段，在三角翼的前缘施以较弱的次谐波扰动，从而延缓旋涡破碎．研究结果表明：在很小的引射动量系数（Ｃμ＝０．００２）及低频引射（ｆｊ＜２Ｈｚ）条件下，沿前缘的周期性质量引射会显著地推迟脱体涡的破裂．在本文条件下最佳激励频率为未受激励的前缘离散脱落涡频率的四分之一．在最佳激励频率下，破裂点后移的幅度可达２０％弦长．
This paper discusses the use of periodic mass ejection as a means of excitation, applying weak sub-harmonic perturbations on the leading edge of the delta wing to delay vortex shedding. The results show that the periodic ejection along the leading edge significantly delays the detachment vortex rupture under the condition of very small momentum (Cμ = 0.002) and low frequency (fj <2Hz). The optimum excitation frequency under this condition is one-fourth of the frequency of the unscented discrete discrete shedding vortex. At the best excitation frequency, the rupture point can be moved up to 20% chord length.