本文研究了一种基于三角形单元的二维时 域有限积分方法(Finite Integration Time Domain, FITD)，用于解决二维复杂结构的电磁场计算问 题。
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但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
LAD格式是基于积分型的有限体积法并且通过附加源项的方法来实现。
GWLAD scheme is obtained from finite volume method and implemented by means of additional source terms.
采用时间有限差分离散化方法求解超空泡流积分方程，得到了问题的数值解。
Solving integral equations of supercavitating flow based on the finite difference time discretization method, some numerical results are obtained.
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