层流上界雷诺数 | ||||||||
流量qv | 温度t | 粘度μ | 密度ρ | 咸潮入侵流速u | 临界雷诺数 | 实验现象 | ||
l/h | ×10-5m3/s | ℃ | mPa·s | kg/m3 | m/s | |||
1 | 113 | 3.14 | 25.6 | 0.894 | 998.3 | 0.082615 | 2030.265891 | 管内成线状的红墨水发生波动 |
2 | 124 | 3.44 | 0.090658 | 2227.902393 | ||||
3 | 107 | 2.97 | 0.078229 | 1922.464162 | ||||
4 | 90 | 2.50 | 0.0658 | 1617.025931 | ||||
张勃兴 5 | 97 | 2.69 | 0.070918 | 1742.794614 | ||||
6 | 104 | 2.89 | 0.076035 | 1868.563298 | ||||
7 | 120 | 3.33 | 0.087733 | 2156.034574 | ||||
8 | 114 | 3.17 | 0.083346 | 2048.232845 | ||||
均值 | 1951.660463 | |||||||
相对误差 | -0.024169768 | |||||||
标准偏差 | 205.9633101 | |||||||
湍流下界雷诺数 | ||||||||
实验 序号 | 流量qv | 温度t | 粘度μ | 密度ρ | 流速孙仪之u | 临界雷诺数 | 实验 现象 | |
l/h | ×10-5m3/s | ℃ | mPa·s | kg/m3 | m/s | |||
1 | 230 | 6.39 | 25.6 | 0.894 | 998.3 | 0.168155 | 4132.4 | 红墨水刚进入管内,立即化为烟雾状 |
2 | 203 | 5.64 | 0.148415 | 3647.292 | ||||
3 | 200 | 5.56 | 0.146222 | 3593.391 | ||||
4 | 261 | 7.25 | 0.19082 | 4689.375 | ||||
5 | 243 | 6.75 | 0.17766 | 4365.97 | ||||
6 | 211 | 5.86 | 0.154264 | 3791.027 | ||||
7 | 209 | 5.81 | 0.152802 | 3755.094 | ||||
8 | 210 | 5.83 | 0.153533 | 3773.061 | ||||
均值 | 3968.451138 | |||||||
相对误差 | -0.007887216 | |||||||
标准偏差 | 389.8027749 | |||||||
水温t | 密度ρ | 各个测试点的静压头 | 各个测试点的静压强 | ||||
℃ | kg·m-3 | PA/ρg mm | PB/ρg mm | PC/ρg mm | PA/kPa | PB/kPa | PC/kPa |
27.2 | 995.7 | 416.6 | 416.8 | 416.2 | 4.07 | 4.07 | 4.06 |
403.1 | 402.69 | 402.6 | 3.93 | 3.93 绥靖政策 | 3.93 | ||
389 | 389.9 | 390.1 | 3.80 | 3.80 | 3.81 | ||
369.9 | 370.1 | 370.2 | 3.61 | 3.61 | 3.61 | ||
水温 t/℃ | 密度 ρ/ kg·m-3 | 实验序号 | |||||||
27.2 | 995.7 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
静压头 胡佩莲 | PA/ρg mm | 436.5 | 429.1 | 404.4 | 413.2 | 399.7 | 401.8 | 406.9 | 410.1 |
PB/ρg mm | 428.6 | 414.2 | 373.5 | 385.8 | 363.3 | 368.1 | 378.6 | 381.6 | |
PC/ρg mm | 419.5 | 400 | 343.5 | 361.8 | 329.5 | 336.3 | 348.9 | 358.7 | |
各个测试 点的静压强 | PA/kPa | 4.26 | 4.19 | 3.95 | 4.03 | 3.90 | 3.92 | 3.97 | 4.00 |
PB/kPa | 4.18 | 4.04 | 3.64 | 3.76 | 3.55 | 3.59 | 3.69 | 3.72 | |
PC/kPa | 4.09 | 3.90 | 3.35 | 3.53 | 3.22 | 3.28 | 3.40 | 3.50 | |
动压 头 | u2A/2g mm | 9.5 | 15.1 | 30.4 | 24.7 | 34.3 | 31.2 | 27.3 | 26 |
u2B/2g mm | 0.4 | 3.1 | 2.2 | 4.1 | 6.9 | 4.7 | 2.2 | 2.2 | |
u2C/2g mm | 9.4 | 15.1 | 30.5 | 23.3 | 35.8 | 32.5 | 28.6 | 25.1 | |
流速 | uA/(m/s) | 0.432 | 0.544 | 0.772 | 0.696 | 0.820 | 0.782 | 0.731 | 0.714 |
uB/(m/s) | 0.089 | 0.246 | 0.208 | 0.283 | 0.368 | 0.304 | 0.208 | 0.208 | |
uC/(m/s) | 0.429 | 0.544 | 0.773 | 0.676 | 0.838 | 0.798 | 0.749 | 0.701 | |
压头 损失 | Hf(1-A) mm | 0.432 | 0.544 | 0.772 | 0.696 | 0.820 | 0.782 | 0.731 | 0.714 |
Hf(1-= mm | 21 | 32.7 | 74.3 | 60.1 | 79.8 | 77.2 | 69.2 | 66.2 | |
Hf(1-C) mm | 21.1 | 34.9 | 76 | 64.9 | 84.7 | 81.2 | 72.5 | 66.2 | |
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