Bakhvalov-Shishkin网格上求解边界层问题的差分进化算法
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周琴,程立正
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Differential Evolution Algorithms for Boundary Layer Problems on Bakhvalov-Shishkin Mesh
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Qin Zhou,Lizheng Cheng
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表 2 差分进化算法求解算例2的最优网格参数β1及目标函数值
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| ε | N = 32 | N = 64 | N = 128 | N = 256 | | 误差 | β1 | 误差 | β1 | 误差 | β1 | 误差 | β1 | | 10-2 | 2.646E-02 | 0.842 | 1.403E-02 | 0.797 | 7.218E-03 | 0.837 | 3.657E-03 | 0.826 | | 10-3 | 2.790E-02 | 0.711 | 1.463E-02 | 0.729 | 7.447E-03 | 0.769 | 3.749E-03 | 0.806 | | 10-4 | 2.808E-02 | 0.710 | 1.471E-02 | 0.728 | 7.483E-03 | 0.768 | 3.765E-03 | 0.790 | | 10-5 | 2.810E-02 | 0.709 | 1.472E-02 | 0.728 | 7.487E-03 | 0.768 | 3.766E-03 | 0.790 | | 10-6 | 2.810E-02 | 0.709 | 1.472E-02 | 0.728 | 7.487E-03 | 0.768 | 3.767E-03 | 0.790 |
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