It is proved that prandtl's mixing length theory is based on the molecular momentum transport mechanism. 在这些基础上叙述了动量、热量和质量传输的模型,证明Prandtl湍流混合长度理论(MLT)是分子动量传输的模型。
The authors review the original mixing length theory and give a set of modified mixing length formula. 作者对此提出了质疑,并提出了一种修正的混合长公式。
New theory predicts a shallower convection envelope for a given super giant in comparison with the usual mixing length theory. 与传统的理论相比,对具相同质量、光度和有效温度的恒星,新理论预期一较浅的对流区,超声速对流也被有效地抑制了。
Based on fluid dynamic principle, the tidal velocity profile in the near-bottom layer in estuary and coast is established by introducing Prandtl mixing length theory and Von Karman self-similar theory. 本文从流体动力学原理出发,利用Prandtl混合长度和VonKarman自相似理论,建立河口海岸近底层潮流速分布的对数线性模式。
The zero-equation model of turbulence is used for the sake of simplicity for engineering application, i.e. the Reynolds shear-stress term may be eliminated by the concept of Prandtl's mixing length theory. 为了工程应用上的简便,湍流模式采用零方程,即湍流剪应力的补充方程采用Prandtl的混合长度理论(MLT)。