Bakhvalov-Shishkin网格上求解边界层问题的差分进化算法
|
|
周琴,程立正
|
Differential Evolution Algorithms for Boundary Layer Problems on Bakhvalov-Shishkin Mesh
|
|
Qin Zhou,Lizheng Cheng
|
|
表 3 差分进化算法求解算例3的最优网格参数β2及目标函数值
|
| |
|
| ε | N = 32 | N = 64 | N = 128 | N = 256 | | 误差 | β2 | 误差 | β2 | 误差 | β2 | 误差 | β2 | | 10-2 | 5.773E-03 | 0.441 | 2.879E-03 | 0.446 | 1.393E-03 | 0.430 | 6.534E-04 | 0.397 | | 10-3 | 6.997E-03 | 0.345 | 3.638E-03 | 0.357 | 1.851E-03 | 0.364 | 9.320E-04 | 0.368 | | 10-4 | 7.154E-03 | 0.330 | 3.733E-03 | 0.340 | 1.907E-03 | 0.346 | 9.636E-04 | 0.350 | | 10-5 | 7.172E-03 | 0.328 | 3.743E-03 | 0.338 | 1.913E-03 | 0.344 | 9.670E-04 | 0.347 | | 10-6 | 7.173E-03 | 0.328 | 3.744E-03 | 0.338 | 1.914E-03 | 0.344 | 9.673E-04 | 0.347 |
|
|
|