| 双相介质中纵波方程的高阶有限差分解法 |
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| 引用本文： | 张会星,何兵寿,宁书年.双相介质中纵波方程的高阶有限差分解法[J].物探与化探,2004,28(4):307-309,313. |
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| 作者姓名： | 张会星 何兵寿 宁书年 |
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| 作者单位： | 中国矿业大学,北京,100083 |
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| 摘 要： | 从双相介质中的纵波方程出发,导出了求解双相各向同性介质中纵波方程的高阶差分格式,给出了吸收边界条件和稳定性条件,在此基础上实现了双相各向同性介质中纵波方程的高阶有限差分法正演模拟,数值模拟结果表明,这种算法能在少量增加计算量的前提下大大提高精度,算法可同时应用于叠前和叠后的数值模拟。
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| 关 键 词： | 双相介质 波动方程 正演模拟 高阶差分格式 |
| 文章编号： | 1000-8918(2004)04-0307-03 |
| 收稿时间： | 2003-04-17 |
HIGH-ORDER FINITE DIFFERENCE SOLUTION OF DILATATIONAL WAVE EQUATIONS IN TWO-PHASE MEDIA |
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| ZHANG Hui-xing,HE Bing-shou,NING Shu-nian.HIGH-ORDER FINITE DIFFERENCE SOLUTION OF DILATATIONAL WAVE EQUATIONS IN TWO-PHASE MEDIA[J].Geophysical and Geochemical Exploration,2004,28(4):307-309,313. |
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| Authors: | ZHANG Hui-xing HE Bing-shou NING Shu-nian |
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| Institution: | China University of Mining &;Technology, Beijing 100083, China |
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| Abstract: | A high-order difference scheme is derived from the dilatational wave equations of two-phase media, and the corresponding absorbing boundary conditions and stability conditions are also provided, based on which a high-order finite difference numerical modeling algorithm for dilatational wave equations of two-phase isotropy media is realized. It is shown that this method can greatly improve the precision on condition that the calculation time is a bit extended. This method can be applied to both pre-stack and post-stack numerical modeling. |
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| Keywords: | two-phase media wave equation forward modeling high-order difference schemes |
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