... higher-order closure model 高阶闭合模式 higher-order finite difference 高阶有限差分 higher-order perturbation solution 高阶扰动解 ...
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本文应用交错网格高阶有限差分方法模拟弹性波在三维各向同性介质中的传播。
This article provides the application of the high-order, staggered-grid, finite-difference scheme to model elastic wave propagation in 3-d isotropic media.
结果表明：交错网格高阶有限差分波场数值模拟具有较高的精度，计算速度快，基本能满足工程上的需要。
The results show that the staggered-grid high-order finite-difference method can satisfy the demands of engineering with high accuracy and rapid computation.
用交错网格的高阶有限差分方法解波动方程，在满足稳定性要求时，可获得时间和空间都是高阶精度的结果。
Highly precise solutions both in time and in space can be reached by solving wave equation with high order finite difference scheme of staggered grid under the condition of stability.
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