The characteristics of chaos, are that positive characteristic exponents and fractional dimension can quantitatively express the turbulent intermittency.
正的特征指数和分数维可以定量表征湍流的间歇性。
It is assumed in the two-fluid model that the turbulent and non-turbulent fluids occupy the turbulent flow field intermittently and thus the "intermittency" phenomena of turbulence are simulated.
二流湍流模型假设湍流流场中的每一点为“湍流”和“非湍流”流体所交替占据，从而模拟了湍流的“间隙”现象。
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