边界元法和坐标变换法解二维无压渗流

采取边界单元法和坐标变换相结合的方法实现了渗流场的快速预报. 即通过边界单元法计算出无压渗流的浸润线,从而给出无压渗流的区域,使用正交坐标变换给出等流线和等势线. 结合耒阳电厂灰坝的工程实际,计算了不同水位下干滩和均质土坝的浸润线、流线和等势线,数值计算的结果与电模拟试验的结果进行了检验比较,说明所提出的新方法是正确、有效的.

Solutions for two-dimensional unconfined seepage flow by linking of boundary element method and coordinate transformation method

Fast forecast of seepage is the content quite concerned by engineers who are engaged in flood control or prevention and seepage design. By linking of the boundary element method(BEM) and boundary fitted coordinate transformation method(BFCTM), the fast forecast of seepage is achieved; i.e. the area of seepage files by adopting the BEM. Then calculations of streamline and potential-line contours for an earth dam are given by applying the BFCTM. By comparing with the result of CLPM (compared of liquid with power method), it is proved that the method proposed is accurate and effective.