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Abstract

Summary

The explicit spatial finite-difference (ESFD) method has been widely adopted for the scalar wave simulation. While the implicit stencils can effectively improve the accuracy and stability in numerical modelling compared to the ESFD. In this paper, we calculate the implicit spatial finite-difference (ISFD) coefficients by Taylor-series expansion method (TEM) and least-square method (LSM), respectively. The accuracy analysis and numerical modelling results demonstrate that the proposed LSM-ISFD method can achieve higher accuracy than the conventional TEM-based ISFD scheme.

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/content/papers/10.3997/2214-4609.201800969
2018-06-11
2024-04-24

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201800969
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Optimal Implicit Finite-difference Method for the Scalar Wave Simulation
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201800969
/content/papers/10.3997/2214-4609.201800969
/content/papers/10.3997/2214-4609.201800969
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