天然河道水面线计算程序
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Q2
K
324.9825 324.979 324.9751 9126.151 12760.07 12476.01 12195.73 11919.19 11646.39 11377.29 11111.89 10850.15 10592.07 10337.63 10086.79 9839.555 9595.892 9355.783 9119.21 8886.152 8656.591 8430.506 8207.877
流速 V (m/s) 2.243998 2.243987 2.244033 2.244026 0.136362 0.138743 0.141189 0.143701 0.146283 0.148937 0.151666 0.154472 0.15736 0.160331 0.163389 0.166539 0.169783 0.173126 0.176571 0.180124 0.183788 0.187569 0.191472 0.195502
流量 Q1 (m3/s) 17.79997 17.80009 17.79958 17.79965 706.6845 691.023 675.5684 660.3196 645.2757 630.4356 615.7981 601.3623 587.1271 573.0915 559.2543 545.6145 532.171 518.9228 505.8688 493.0078 480.3389 467.861 455.5729 443.4736 0
水深 h (m) 1.695572 1.695579 1.695549 1.695553 13.744 13.594 13.444 13.294 13.144 12.994 12.844 12.694 12.544 12.394 12.244 12.094 11.944 11.794 11.644 11.494 11.344 11.194 11.044 10.894
湿周X 7.652373 7.652389 7.652323 7.652333 33.60548 33.28237 32.95926 32.63615 32.31304 31.98993 31.66682 31.34371 31.0206 30.69749 30.37438 30.05127 29.72816 29.40505 29.08194 28.75883 28.43572 28.11261 27.7895 27.46639
1、 部分为输入参数 为试算数据(可利用菜数据-假设分析-单变量求解功能计算),如右图 2、 采用公式为《水力学(上)》河海大学、赵振兴P364,如下图 3、
糙率 n 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025
流量模数 K 3 (m /s) 324.9814 324.9836 324.9744 324.9757 12902.23 12616.3 12334.13 12055.73 11781.07 11510.13 11242.88 10979.32 10719.43 10463.17 10210.54 9961.512 9716.069 9474.19 9235.858 9001.05 8769.749 8541.934 8317.585 8096.683
(α +ζ )Q2/2gA2 0.256914602 0.256912097 0.256922587 0.256921066 0.000948702 0.000982124 0.001017053 0.001053573 0.001091772 0.001131747 0.001173597 0.001217432 0.001263368 0.001311528 0.001362045 0.001415062 0.001470729 0.001529212 0.001590686 0.001655339 0.001723375 0.001795013 0.001870486 0.001950051
R (m) 1.036577 1.03658 1.036567 1.036569 3.884337 3.854735 3.825099 3.795428 3.765721 3.735976 3.706192 3.676369 3.646505 3.616598 3.586648 3.556652 3.526611 3.496521 3.466381 3.43619 3.405946 3.375647 3.345291 3.314876
Байду номын сангаас
功能计算),如右图 64,如下图
C 2 (m /s) 40.24021 40.24023 40.24015 40.24016 50.15099 50.08708 50.0227 49.95782 49.89243 49.82653 49.76011 49.69315 49.62564 49.55757 49.48894 49.41971 49.3499 49.27947 49.20841 49.13672 49.06438 48.99136 48.91766 48.84325
底宽 b (m) 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
边坡 m 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
K
2
s
(m)
f(Z1) (m)
误差 (m)
87.37257 0.129 87.50158 0.150003 87.65155 0.150006 87.80155 0.00019 100 9.73E-05 100 0.000102 100 0.000107 100 0.000112 100 0.000117 100 0.000122 100 0.000128 100 0.000135 100 0.000141 100 0.000148 100 0.000156 100 0.000164 100 0.000172 100 0.000181 100 0.000191 100 0.000201 100 0.000211 100 0.000223 100 0.000235 100
纵坡 i 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003
说明:
桩号 1+143 1+100 1+050 1+000 0+950 0+900 0+850 0+800 0+750 0+700 0+650 0+600 0+550 0+500 0+450 0+400 0+350 0+300 0+250 0+200 0+150 0+100 0+050 0+000
计算段长 △s (m) 43.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00
流量 水位 河底高程 Q z Zo 3 (m) (m /s) 87.37257 85.677 17.8 87.50158 85.806 17.8 87.65155 85.956 17.8 87.80155 86.106 17.8 100 86.256 17.8 100 86.406 17.8 100 86.556 17.8 100 86.706 17.8 100 86.856 17.8 100 87.006 17.8 100 87.156 17.8 100 87.306 17.8 100 87.456 17.8 100 87.606 17.8 100 87.756 17.8 100 87.906 17.8 100 88.056 17.8 100 88.206 17.8 100 88.356 17.8 100 88.506 17.8 100 88.656 17.8 100 88.806 17.8 100 88.956 17.8 100 89.106 17.8
局部损失 修正系数 断面面积 ζ α A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
7.9 7.9 7.9 7.9 130.5 128.3 126.1 123.9 121.7 119.5 117.4 115.2 113.1 111.0 108.9 106.9 104.8 102.8 100.8 98.8 96.9 94.9 93.0 91.0
B (m) 87.62949 87.75849 87.90847 88.05847 100.0009 100.001 100.001 100.0011 100.0011 100.0011 100.0012 100.0012 100.0013 100.0013 100.0014 100.0014 100.0015 100.0015 100.0016 100.0017 100.0017 100.0018 100.0019 100.002