Software Verification

The developers of these programs make no warranties, expressed or implied, concerning the accuracy, completeness, reliability, or suitability of any program for any particular purpose. It is understood that the user proceeds at his/her own risk.

However Web Hydraulics makes all possible efforts to ensure the accuracy of its calculators. For complex calculators we verify the software against either; established programs, example in the literature or textbook examples.

Listed below are our current verifications against external information sources.

Current Verifications


Pipeflow

Pipeflow Verification

Culvert Hydraulics: Comparison of Current Computer Models

The pipeflow calculator is verified against the thesis: Thiele, Elizabeth Anne, "Culvert Hydraulics: Comparison of Current Computer Models" (2007). All Theses and Dissertations. 881.

This thesis has four test cases to test a range of flow regimes. They are shown in the table below. All units are imperial.

Case Q (cfs) Slope (%) Tailwater Depth (ft)
A 0-300 1.0 0.0
B 0-100 0.2 0.0
C 0-150 0.3 0.0
D 0-200 0.5 4.5


Case A - Results



QThesis Headwater (ft)Web Hydraulics Headwater (ft)
Inlet ControlOutlet ControlInlet ControlOutlet Control
302.07N/A2.06722.4514
603.07N/A3.07413.6262
903.96N/A3.95684.6945
1204.81N/A4.80886.1229
1505.67N/A5.66928.7614
1806.67N/A6.669711.3672
2107.88N/A7.877514.2010
2409.27N/A9.271217.3320
27010.85N/A10.850620.7940
30012.62N/A12.615924.6087

Inlet Control Verified =
True
  Outlet Control Verified =
True




Case B - Results



QThesis Headwater (ft)Web Hydraulics Headwater (ft)
Inlet ControlOutlet ControlInlet ControlOutlet Control
101.161.31.16411.2954
201.681.861.67661.8602
302.092.312.08722.3069
402.452.692.44832.6937
502.783.042.78053.0433
603.093.383.09413.3674
703.393.673.39553.6731
803.693.963.68883.9654
903.984.253.97684.2476
1004.264.524.26174.5223

Inlet Control Verified =
True
  Outlet Control Verified =
True




Case C - Results



QThesis Headwater (ft)Web Hydraulics Headwater (ft)
Inlet ControlOutlet ControlInlet ControlOutlet Control
151.44N/A1.43701.6267
302.08N/A2.08472.3429
452.61N/A2.61472.9167
603.09N/A3.09163.4216
753.543.883.54043.8787
903.974.33.97434.2954
1054.44.694.40114.6916
1204.835.084.82635.0775
1355.255.465.25385.4599
1505.695.845.68675.8442

Inlet Control Verified =
True
  Outlet Control Verified =
True




Case D - Results



QThesis Headwater (ft)Web Hydraulics Headwater (ft)
Inlet ControlOutlet ControlInlet ControlOutlet Control
201.674.031.66914.0337
402.444.132.44084.1346
603.094.33.08664.3025
803.684.543.68134.5371
1004.254.844.25424.8375
1204.825.24.82135.2024
1405.395.635.39235.6288
16066.116.09646.1108
1806.686.636.68226.6354
2007.477.187.46687.1837

Inlet Control Verified =
False
  Outlet Control Verified =
True