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Improving the Efficiency of Variational Methods for Solving Strongly Nonsymmetric Linear Algebraic Equation System Received in Convection-Diffusion Problems

机译:提高求解对流扩散问题中的强非对称线性代数方程组变分方法的效率

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摘要

An efficient algorithm for implementing the mathematical model of convection-diffusion transport with a dominant convection is proposed. Preconditioned Krylov subspace methods are used to solve strongly nonsymmetric systems of linear algebraic equations. Theoretical convergence analy-sis of product triangular skew-symmetric preconditioners is carried out. A series of numerical experi-ments have confirmed the technique’s efficiency.
机译:提出了一种有效的对流扩散对流传播数学模型的有效算法。预处理的Krylov子空间方法用于求解线性代数方程的强非对称系统。对乘积三角形斜对称预处理器进行了理论收敛分析。一系列数值实验证实了该技术的效率。

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