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 1 差分进化算法求解算例1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 | 3.337E-02 | 0.269 | 1.766E-02 | 0.278 | 9.068E-03 | 0.296 | 4.589E-03 | 0.293 | | 10-3 | 3.578E-02 | 0.213 | 1.861E-02 | 0.255 | 9.468E-03 | 0.279 | 4.774E-03 | 0.282 | | 10-4 | 3.664E-02 | 0.211 | 1.896E-02 | 0.245 | 9.577E-03 | 0.265 | 4.808E-03 | 0.275 | | 10-5 | 3.839E-02 | 0.173 | 1.962E-02 | 0.212 | 9.778E-03 | 0.238 | 4.857E-03 | 0.261 | | 10-6 | 4.023E-02 | 0.156 | 2.062E-02 | 0.183 | 1.017E-02 | 0.211 | 4.986E-03 | 0.234 |
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