分析了一种基于小波理论的多尺度计算方法——小波数值均匀化方法,并将该方法用于具有快速振荡系数的抛物型偏微分方程的数值求解。数值结果表明,与传统的有限差分法相比,小波数值均匀化方法不仅保持了较高的数值精度,而且大大提高了计算效率。小波数值均匀化方法能够对具有快速振荡系数的抛物型方程进行有效求解。
A kind of wavelet-based multi-scale method--wavelet-based numerical homogenization method is proposed for parabolic equations with periodic coefficients. Compared to traditional finite difference method, numericalresult indicate that the wavelet-based numerical homogenization method keep better accuracy and further improve computational efficiency.