Into the outer region of turbulent boundary layers artificial single-frequency sinusoidaldisturbances were introduced, which affected bursting periods of the inner layer signifi-cantly. Because of the upstream outer r...Into the outer region of turbulent boundary layers artificial single-frequency sinusoidaldisturbances were introduced, which affected bursting periods of the inner layer signifi-cantly. Because of the upstream outer region disturbances, in the inner layer large-scale low-frequency fluctuations were broken up, relatively small-scale high-frequency fluctuations wereinduced, and the total fluctuating energy of the inner layer increased while the integrallength scale decreased.展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘Into the outer region of turbulent boundary layers artificial single-frequency sinusoidaldisturbances were introduced, which affected bursting periods of the inner layer signifi-cantly. Because of the upstream outer region disturbances, in the inner layer large-scale low-frequency fluctuations were broken up, relatively small-scale high-frequency fluctuations wereinduced, and the total fluctuating energy of the inner layer increased while the integrallength scale decreased.
