基于正交试验的90°弯管冲刷腐蚀数值模拟及实验研究
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杨湘愚, 关蕾, 李雨, 张永康, 王冠, 闫德俊
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Numerical Simulation and Experimental Study on Erosion-corrosion of Square Elbow Based on Orthogonal Test
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YANG Xiangyu, GUAN Lei, LI Yu, ZHANG Yongkang, WANG Guan, YAN Dejun
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表2 基于正交试验的数值模拟结果
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Table 2 Numerical simulation results based on orthogonal experiment
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| Test plan | Factor | Max erosion rate 10-8 kg/m2·s |
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| A:pipe diameter mm | B:inlet velocity m·s-1 | C: flow direction | D: sand diameter μm | E:sand mass flow kg·s-1 |
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| 1: A1B1C1D1E1 | 30 | 1 | a | 50 | 0.005 | 0.084 | | 2: A1B2C2D2E2 | 30 | 2 | b | 100 | 0.01 | 1.39 | | 3: A1B3C3D3E3 | 30 | 3 | c | 300 | 0.02 | 8.6 | | 4: A1B4C4D4E4 | 30 | 5 | d | 500 | 0.03 | 96.74 | | 5: A2B1C2D3E4 | 38 | 1 | b | 300 | 0.03 | 0.35 | | 6: A2B2C1D4E3 | 38 | 2 | a | 500 | 0.02 | 1.85 | | 7: A2B3C4D1E2 | 38 | 3 | d | 50 | 0.01 | 1.65 | | 8: A2B4C3D2E1 | 38 | 5 | c | 100 | 0.005 | 3.77 | | 9: A3B1C3D4E2 | 44.5 | 1 | c | 500 | 0.01 | 0.42 | | 10: A3B2C4D3E1 | 44.5 | 2 | d | 300 | 0.005 | 0.89 | | 11: A3B3C1D2E4 | 44.5 | 3 | a | 100 | 0.03 | 3.4 | | 12: A3B4C2D1E3 | 44.5 | 5 | b | 50 | 0.02 | 7.26 | | 13: A4B1C4D2E3 | 57 | 1 | d | 100 | 0.02 | 0.13 | | 14: A4B2C3D1E4 | 57 | 2 | c | 50 | 0.03 | 1.04 | | 15: A4B3C2D4E1 | 57 | 3 | b | 500 | 0.005 | 0.87 | | 16: A4B4C1D3E2 | 57 | 5 | a | 300 | 0.01 | 2.48 | | k1 | 26.7 | 0.25 | 1.95 | 2.51 | 1.4 | --- | | k2 | 1.91 | 1.29 | 2.47 | 2.17 | 1.49 | --- | | k3 | 2.99 | 3.63 | 3.46 | 3.08 | 4.46 | --- | | k4 | 1.13 | 27.56 | 24.85 | 24.97 | 25.38 | --- | | R | 25.57 | 27.31 | 22.9 | 22.8 | 23.98 | --- | | Factor order | 2 | 1 | 4 | 5 | 3 | --- |
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