Open Access
表2
亚声速下的模型训练效率与预测精度指标对比
| 分区策略 | POD单次建模耗时/s | POD建模次数 | BPNN单次建模耗时/s | BPNN建模次数 | 总建模耗时/s | 最大相对误差均值E1 | 平均相对误差均值E2 |
| 三分区 | 1.88 | 3×5 | 2.84 | 3×5 | 70.8 | 1.535×10-3 | 4.995×10-5 |
| 未分区 | 14.94 | 5 | 3.33 | 5 | 91.35 | 1.539×10-3 | 5.116×10-5 |
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