Open Access
表3
跨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 | 4.06 | 3×5 | 16.25 | 3×5 | 304.65 | 0.142 8 | 0.001 5 |
| 未分区 | 35.89 | 5 | 27.34 | 5 | 316.15 | 0.166 4 | 0.001 6 |
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