二维边界元法的新算法

A NEW ALGORITHM OF TWO-DIMENTIONAL BOUNDARY ELEMENT METHOD

本文提出一种二维边界无法的算法。主要是提出新的离散方法，可以大大地节省内存，提高运算速度；系数矩阵元素计算不用高斯积分公式，而用坐标变换的方法导出一个新公式，减少了运算量，提高了计算精度。最后介绍了本文方法的实施。

This paper presents a new algorithm of the two-dimentional Boundary Element thod(BEM).By a new way to discretizate the boundary integral equation,the requirement of internal storages is prominently reduced,and the numerical accuracy is also improved.Instead of using the Gauss integral formula,we deduce a set of new formulas by means of coordinate transformation,which have the advantage of reducing the amount of calculation and improving the numerical accuracy.At the end of the paper,the achievement of this new algorithm is introduced.