Description: 本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.) Platform: |
Size: 115712 |
Author:bingwuhen1 |
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Description: 该程序为地震波数值模拟程序，基于声波方程二阶有限差分格式，程序中参数已经进行了说明，对于初学地震波数值模拟的朋友很有帮助。该程序为matlab编制，可以直接进行成图，所得图形为波场快照(The program is a seismic wave numerical simulation program. Based on the second-order finite difference format of the acoustic wave equation, the parameters in the program have been explained, which is very helpful for the friends of the numerical simulation of the initial seismic wave. The program is compiled for matlab, and can be directly mapped, and the resulting graph is a wave field snapshot.) Platform: |
Size: 1024 |
Author:一只吸烟的猫 |
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Search - Wave Field Numerical Simulation matlab