several precise techniques for imposing essential boundary condition are introduced to mlpg and compared in terms of accuracy and cpu costs.
将几种精确处理本质边界条件的技术引入mlpg方法中,作了具体公式推导与详细比较;
but the imposition of essential boundary condition and the treatment of discontinuous field variable and the derivative are somewhat troublesome, and the computation cost is large.
然而自身也存在着计算量大、边界条件和不连续的场变量及其导数处理上的困难。
the essential boundary condition is imposed by employing a penalty method.