Rased on a two-dimensional pseudo-spectral model by which a transport-diffusion equation is solved, a electric image method is used to develop a three-dimensional pseudo-spectral model.

• 本文运用电像法,把一个求解输送扩散方程的二维伪请模式发展成三维模式,尝试把高斯模式和数值计算模式结合起来运用于数值模拟。