While along with the development of turbulence theory, the flaws of K41 theory were understood gradually, and in these flaws, the irrationally neglect of intermittency is evidently.

然而，随着湍流研究的深入，人们已经逐渐意识到K41湍流理论的各方面的缺点，其中尤其明显的是，K41理论忽略了湍流的间歇特征。

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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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