The high - aspect-ratio grids were commonly used in numerical simulations of the viscousboundarylayer flows and the main calculation error was always correlated to the aspect ratio of the grids.
在边界层内的计算网格一般都具有很大的长宽比，而计算误差与网格长宽比密切相关。
2
An error matching principle, which is base on the error analysis of the computations with high-aspect-ratio grids, is derived for the finite difference simulation of the viscousboundarylayer flows.
通过对粘性边界层的数值模拟和误差分析，提出了差分格式的误差匹配原则。
3
Boundary element calculation is applied to the main flow field, while integral methods of the boundarylayer theory are applied to the viscous layers.