对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
在集中介绍离散涡方法的概念后，提出在高雷诺数流动情况下的一种简化流动模型—基于奇点法的离散涡模型。
After concentrated introduction of the conception of DVM, a simplified numerical model is proposed under high Renold number which is a DVM model combined singularity method.
为此本文应用非线性PWM平均方法将原离散多输入模型转换为连续单输入模型，简化后的模型更有利于对系统的研究。
So applied nonlinear PWM average method, the paper changes the model from disperse multi-input to the single-input, which advantaged research of the system.
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