结果表明，扰动波矢轴向分量的存在引起新的不稳定性。

Our results indicate that the axial component of wavevector of perturbation can lead to a new instability.

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数值计算模拟了边界层对成倍频关系的双频扰动波的吸收问题。

The numerical simulation was made on the receptivity of boundary layer to two disturbance waves which frequencies are of double multiple relation.

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本文用数值计算的方法研究流动稳定性问题中小扰动波的传播速度。

In this paper, by using the direct numerical simulation method, the propagation speed of small amplitude disturbances in the problem of hydrodynamic stability is investigated.

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