摘要
本文从应力－位移速度波动方程出发，对一阶线性微分方程建立了四阶空间精度和二阶时间精度差分公式。该方法采用显格式计算，网格频散对泊松比的影响极小，算法的稳定性适应于任何泊松比的地质模型。
Based on the stress─displacement velocity wave equation.this paper presentsa foruthorder space accruacy difterence forniula and a seceond─order time accuracy differ-ence formula of first order linear differential etluation.Since the niethod is explicit-grid dis-persion has little effect on Possion's rate.The stability of the algorithm niakes it suitable togeological models of any &.Poisson's rate.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1994年第3期1-6,共6页
Petroleum Geology & Oilfield Development in Daqing
