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。
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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