Steady Uniform Open Channel Flow Lab Report.xlsx
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Q (gpm) y mild (in) Q (ft3/S) y mild (ft) Rh V(ft/s) n Nf 10 0.8 0.0223 0.0666 0.0480 0.9739 0.009039 20 1.185 0.0446 0.0987 0.0627 1.3150 0.007997 30 1.45 0.0669 0.1208 0.0709 1.6120 0.007083 40 1.87 0.0892 0.1558 0.0817 1.6666 0.007528 50 2.13 0.1115 0.1774 0.0873 1.8289 0.007169 60 2.44 0.1338 0.2033 0.0931 1.9159 0.007145 70 2.61 0.1561 0.2174 0.0960 2.0896 0.006684 80 2.935 0.1784 0.2445 0.1009 2.1237 0.006800
0.002 slope V(ft/s) log V(ft/s) Rh log Rh 0.973905 -0.01148 0.048015 -1.31862 1.314978 0.118918 0.062691 -1.2028 1.611981 0.20736 0.070923 -1.14922 1.666576 0.221825 0.081697 -1.0878 1.82893 0.262197 0.087285 -1.05906 1.915879 0.282368 0.093104 -1.03103 2.089605 0.320064 0.095967 -1.01788 2.123678 0.327089 0.100899 -0.99612
f 0.6648 0.7376 0.8174 0.7441 0.7652 0.7489 0.7898 0.7569
Nr 0.0261 15987.11 0.0187 28183.5 0.0141 39085.73 0.0152 46548.27 0.0134 54576.88 0.0131 60983 0.0113 68558.25 0.0115 73256.76
mild slope steep slope 0.99002 flume lengtdepth (inc flume lengt 1 2.22 1 3 2.2 3 5 2.14 5 7 2.075 7 9 2 9
Q (gpm) y steep (in)Q (ft3/S) y steep (ft)Rh V(ft/s) n Nf 10 0.26 0.0223 0.0217 0.01923 2.9966 0.007981 20 0.43 0.0446 0.0358 0.02964 3.6238 0.008805 30 0.57 0.0669 0.0475 0.03720 4.1007 0.009054 40 0.74 0.0892 0.0616 0.04536 4.2115 0.010063 50 0.9 0.1115 0.0750 0.05219 4.3285 0.010750 60 1.03 0.1338 0.0858 0.05722 4.5386 0.010901 70 1.175 0.1561 0.0979 0.06235 4.6416 0.011287 80 1.3 0.1784 0.1083 0.06642 4.7946 0.011397
steep slope depth (inches) 1.15 1.09 0.89 0.85 0.71
f 3.588 3.374 3.316 2.989 2.786 2.731 2.615 2.568
0.05 slope V(ft/s) log V(ft/s) Rh log Rh 2.996632 0.476633 0.019233 -1.71595 0.98870 3.623834 0.559168 0.029639 -1.52813 4.100654 0.612853 0.0372 -1.42946 4.211482 0.624435 0.045365 -1.34328 4.328468 0.636334 0.052194 -1.28238 4.538588 0.656921 0.057222 -1.24244 4.641591 0.666667 0.062354 -1.20514 4.794611 0.680753 0.066422 -1.17769
0.0276 0.0291 0.0285 0.0329 0.0359 0.0358 0.0373 0.0372
Nr 20335.27 37896.54 53821.64 67408.97 79710.28 91631.29 102115.1 112364.5
Plot of velocity vs hydraulic radius 0.35 f(x) = 1.0278717595x + 1.3547340105 R² = 0.9801448635
0.3 0.25
log vel
0.2 0.15 0.1 0.05 -1.35
-1.3
-1.25
-1.2
-1.15
-1.1
-1.05
log Rh mi l d s l ope
Li near (mi l d s l ope)
-1
0 -0.95 -0.05
0.35 0.3 0.25 0.2 0.15 0.1 0.05 -1
0 -0.95 -0.05
Plot of velocity vs Reynolds number 0.8 0.7 f(x) = 0.3608605462x + 1.1069963413 R² = 0.9775265508
0.6
log Velocity
0.5 0.4 0.3 0.2 0.1 -1.8
-1.7
-1.6
-1.5
-1.4
-1.3
-1.2
log Rh STEEP SLOPE
Li near (STEEP SLOPE)
0 -1.1
olds number 0.8 0.7
3413
0.6 0.5 0.4 0.3 0.2 0.1
-1.4
-1.3
-1.2
Li near (STEEP SLOPE)
0 -1.1
0.002 slope V(ft/s) log V(ft/s) Rh log Rh 0.973905 -0.01148 0.048015 -1.31862 1.314978 0.118918 0.062691 -1.2028 1.611981 0.20736 0.070923 -1.14922 1.666576 0.221825 0.081697 -1.0878 1.82893 0.262197 0.087285 -1.05906 1.915879 0.282368 0.093104 -1.03103 2.089605 0.320064 0.095967 -1.01788 2.123678 0.327089 0.100899 -0.99612
f 0.6648 0.7376 0.8174 0.7441 0.7652 0.7489 0.7898 0.7569
Nr 0.0261 15987.11 0.0187 28183.5 0.0141 39085.73 0.0152 46548.27 0.0134 54576.88 0.0131 60983 0.0113 68558.25 0.0115 73256.76
mild slope steep slope 0.99002 flume lengtdepth (inc flume lengt 1 2.22 1 3 2.2 3 5 2.14 5 7 2.075 7 9 2 9
Q (gpm) y steep (in)Q (ft3/S) y steep (ft)Rh V(ft/s) n Nf 10 0.26 0.0223 0.0217 0.01923 2.9966 0.007981 20 0.43 0.0446 0.0358 0.02964 3.6238 0.008805 30 0.57 0.0669 0.0475 0.03720 4.1007 0.009054 40 0.74 0.0892 0.0616 0.04536 4.2115 0.010063 50 0.9 0.1115 0.0750 0.05219 4.3285 0.010750 60 1.03 0.1338 0.0858 0.05722 4.5386 0.010901 70 1.175 0.1561 0.0979 0.06235 4.6416 0.011287 80 1.3 0.1784 0.1083 0.06642 4.7946 0.011397
steep slope depth (inches) 1.15 1.09 0.89 0.85 0.71
f 3.588 3.374 3.316 2.989 2.786 2.731 2.615 2.568
0.05 slope V(ft/s) log V(ft/s) Rh log Rh 2.996632 0.476633 0.019233 -1.71595 0.98870 3.623834 0.559168 0.029639 -1.52813 4.100654 0.612853 0.0372 -1.42946 4.211482 0.624435 0.045365 -1.34328 4.328468 0.636334 0.052194 -1.28238 4.538588 0.656921 0.057222 -1.24244 4.641591 0.666667 0.062354 -1.20514 4.794611 0.680753 0.066422 -1.17769
0.0276 0.0291 0.0285 0.0329 0.0359 0.0358 0.0373 0.0372
Nr 20335.27 37896.54 53821.64 67408.97 79710.28 91631.29 102115.1 112364.5
Plot of velocity vs hydraulic radius 0.35 f(x) = 1.0278717595x + 1.3547340105 R² = 0.9801448635
0.3 0.25
log vel
0.2 0.15 0.1 0.05 -1.35
-1.3
-1.25
-1.2
-1.15
-1.1
-1.05
log Rh mi l d s l ope
Li near (mi l d s l ope)
-1
0 -0.95 -0.05
0.35 0.3 0.25 0.2 0.15 0.1 0.05 -1
0 -0.95 -0.05
Plot of velocity vs Reynolds number 0.8 0.7 f(x) = 0.3608605462x + 1.1069963413 R² = 0.9775265508
0.6
log Velocity
0.5 0.4 0.3 0.2 0.1 -1.8
-1.7
-1.6
-1.5
-1.4
-1.3
-1.2
log Rh STEEP SLOPE
Li near (STEEP SLOPE)
0 -1.1
olds number 0.8 0.7
3413
0.6 0.5 0.4 0.3 0.2 0.1
-1.4
-1.3
-1.2
Li near (STEEP SLOPE)
0 -1.1
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