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基于Hermite公式和扩展三次B-样条的Burgers方程数值解法

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将Hermite公式与扩展三次B-样条相结合,给出了一种求解Burgers方程的混合格式计算方法。对Burgers方程空间离散采用Hermite公式结合扩展三次B-样条配点法,时间离散采用有限差分法,利用Von Neumann(Fourier)分析法证明了混合格式的稳定性,数值实验验证了方法的准确性和有效性。适当调整基函数中的参数可以提高计算精度。
Numerical solution of Burgers equation based on Hermite formula and extended cubic B-spline
By combining Hermite formula with the extended cubic B-spline,an efficient computational method is presented for solving the Burgers'equation in a mixed format.The spatial discretization for the Burgers'equation is achieved by employing Hermite formula in conjunction with the extended cubic B-spline collocation method,while the temporal discretization is implemented using finite difference.The stability of this format is proved using the Von Neumann(Fourier)analysis method.A numerical experiment is performed to illustrate the accuracy and effectiveness of the proposed algorithm.The calculation accuracy can be improved by appropriately adjusting the parameter within the basis functions.

Hermite formulaBurgers equationextended cubic B-splinefinite difference

周书伊、吴蓓蓓、徐丽

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上海电力大学 数理学院,上海 200090

Hermite公式 Burgers方程 扩展三次B-样条 有限差分

2025

西北师范大学学报(自然科学版)
西北师范大学

西北师范大学学报(自然科学版)

影响因子:0.463
ISSN:1001-988X
年,卷(期):2025.61(1)