【摘要】 针对有限分析法边界适应性差的问题,采用坐标旋转技术,建立了拉普拉斯方程非规则区域的有限分析5点格式,对均质渗流问题进行了计算,给出了土坝渗流的浸润线和等水头线,并与有限元方法的计算成果进行了比较,验证了该方法的实用性.该方法可以作为有限分析方法对解决不规则区域的一个扩充.更多还原

【Abstract】 In order to improve the adaptability of finite analytic method to irregular domains, the new scheme of finite analytic method for Laplace equation in irregular domain is got by coordinate rotation technique. The seepage flow in isotropic soil with irregular domain is simulated by this new method. The saturation line and the isopiestic line are illustrated also. The calculated results agree well with the ones by finite element method. This method can be seen as the appending method of the finite analytic method to solve the irregular domain problem.更多还原