Research Article
Multiobjective Optimization of Low-Specific-Speed Multistage Pumps by Using Matrix Analysis and CFD Method
Table 9
Range analysis of orthogonal test data.
| Index | A | B | C | D | E | F | G | H | I | J |
| H/m | | | | | | | | | | | k
1 | 34.977 | 34.401 | 33.862 | 34.625 | 35.784 | 35.473 | 35.281 | 35.366 | 35.412 | 35.087 | k
2 | 35.627 | 35.355 | 35.831 | 36.045 | 35.295 | 35.252 | 35.447 | 35.656 | 35.434 | 36.535 | k
3 | 35.513 | 36.362 | 36.424 | 35.447 | 35.038 | 35.393 | 35.389 | 35.096 | 35.271 | 34.495 | s | 0.650 | 1.961 | 2.562 | 1.420 | 0.746 | 0.221 | 0.167 | 0.560 | 0.163 | 2.040 | η/% | | | | | | | | | | | k
1 | 60.795 | 60.935 | 61.059 | 61.116 | 60.630 | 60.739 | 60.285 | 60.530 | 60.678 | 60.600 | k
2 | 60.661 | 60.838 | 60.754 | 60.965 | 60.747 | 60.755 | 60.920 | 60.897 | 60.713 | 61.795 | k
3 | 60.571 | 60.254 | 60.214 | 59.946 | 60.650 | 60.532 | 60.822 | 60.601 | 60.636 | 59.632 | s | 0.224 | 0.681 | 0.844 | 1.170 | 0.117 | 0.223 | 0.635 | 0.367 | 0.077 | 2.163 | P/kW | | | | | | | | | | | k
1 | 1.963 | 1.927 | 1.855 | 1.936 | 2.033 | 2.027 | 2.009 | 2.015 | 2.017 | 2.018 | k
2 | 2.033 | 2.007 | 2.045 | 2.053 | 2.017 | 2.000 | 2.008 | 2.022 | 2.031 | 2.025 | k
3 | 2.038 | 2.101 | 2.134 | 2.045 | 1.985 | 2.007 | 2.017 | 1.998 | 1.987 | 1.992 | s | 0.075 | 0.174 | 0.279 | 0.116 | 0.048 | 0.027 | 0.009 | 0.024 | 0.043 | 0.033 |
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