直接由有限元方程计算边界场量与积分量的新方法——通量替换法

Electric Flux Substitution Method——A New Method to Calculate the Electric Field Intensities and Their Integrated Quantities on the Boundaries

本文在有限元素法的基础上,实现了场域第一、第二类边界条件的等效替换,并据此导出了计算电荷量与导体表面场强或边界法向场强及介质分界面上法向场强的新方法——通量替换法。这种方法不必采用位函数的导数求场强以及对边界场强的积分求电荷量,不仅十分简单,而且精度显著提高。

In terms of the equivalent Substitution principle,a new method is present in this paper that enable us to calculate the charge quantity and the normal compon- ents of the field intensities on the boundaries and on the medium interfaces with- out using any differentiation and integration.So it is not only very simple but also very accurate.