The paper briefly reviews some finite difference methods of the turbulent boundary layer, their differences and characteristics, and some other related problems.

本文概述了紊流附面层几种差分解法，它们的差异与特点、以及有关问题。

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But if the surface layer is considered, the traditional finite element methods can not be used, since the ill-condition of structural equilibrium equations produce numerical difficulties.

但是，如果考虑表面层，常规有限元法由于结构平衡方程病态而导致数值上的困难。

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But if the surface layer is considered, the traditional finite element methods can not be used, since the ill-condition of structural equilibrium equations produce numerical difficulties.

但是，如果考虑表面层，常规有限元法由于结构平衡方程病态而导致数值上的困难。

youdao