validation of the new b2b bankless channel irrigation system model michael grabham, r. soppe, j....
TRANSCRIPT
![Page 1: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/1.jpg)
Validation of the new B2B Bankless Channel Irrigation System model
Michael Grabham, R. Soppe,
J. Hornbuckle, R. Smith and S. Raine
![Page 2: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/2.jpg)
Outline
System overview Hydraulic challenges B2B model Bay-scale comparison Whole field simulations Conclusions
![Page 3: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/3.jpg)
System Overview
![Page 4: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/4.jpg)
System overview
![Page 5: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/5.jpg)
System overview
![Page 6: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/6.jpg)
Why the system is being considered
Advantages– Labour savings– Can be automated– Machine efficiency– Expanded cropping options
![Page 7: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/7.jpg)
Hydraulic challenges
![Page 8: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/8.jpg)
Hydraulic challenges
Variable inflow rates Variable bay sizes Bay to bay hydraulic interaction
![Page 9: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/9.jpg)
Time
Flo
w r
ate
Hydraulic challenges
![Page 10: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/10.jpg)
Variable bay sizes– 60:100:40 bay ratios– Surface storage volume
accumulation– Interconnecting pipe size
selection– Drainage water minimisation
Hydraulic challenges
![Page 11: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/11.jpg)
Hydraulic challenges
![Page 12: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/12.jpg)
Hydraulic challenges
![Page 13: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/13.jpg)
Hydraulic challenges
Bay to bay hydraulic interaction– Calculate the available
volumes– Calculate inflow rates– Select adequate bay
dimensions– Select adequate pipe sizes
![Page 14: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/14.jpg)
B2B model
![Page 15: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/15.jpg)
B2B model
Current simulation models– Single dimension– Variable inflow– Recession phase limitations– Assume free flowing drainage
![Page 16: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/16.jpg)
B2B model
Clemmens’ (2007) surface irrigation design approach– Volume balance principles– Spreadsheet based– Simultaneously solves for
advance and inlet depth– Uses fixed inflow
![Page 17: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/17.jpg)
B2B model
Darcy Weisbach equation
![Page 18: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/18.jpg)
B2B model
Clemmens’ ApproachClemmens’ Approach
Darcy Weisbach equation
![Page 19: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/19.jpg)
Bay scale comparison
![Page 20: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/20.jpg)
B2B – Bay Scale Discharge
Errors from MeasuredwinSRFR = 65%SISCO = 65%
B2B = 18%
![Page 21: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/21.jpg)
B2B – Bay Scale Advance and recession
![Page 22: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/22.jpg)
B2B – Bay Scale Infiltrated depth
![Page 23: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/23.jpg)
B2B – Bay Scale Simulation discrepancies
– Attributed to model assumptions
1. Level water surface
2. Friction ignored
3. Infiltration during recession
![Page 24: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/24.jpg)
Field simulations
![Page 25: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/25.jpg)
B2B – Field Scale Advance and recession
Bay 1
Bay 2
Bay 3
![Page 26: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/26.jpg)
B2B – Field Scale
Depth
![Page 27: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/27.jpg)
B2B – Field Scale
Inlet hydrographs
![Page 28: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/28.jpg)
B2B – Field Scale
Inlet cumulative hydrographs
![Page 29: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/29.jpg)
Conclusions
Novel approach taking into account bay-to-bay interaction
Enables simulation of multiple bay systems Discrepancies with known causes
![Page 30: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/30.jpg)
Acknowledgements
CRC IF Postgraduate scholarship IAL and CRC IF Travel Fund grant CSIRO Land and Water, Griffith USQ, Toowoomba
![Page 31: Validation of the new B2B Bankless Channel Irrigation System model Michael Grabham, R. Soppe, J. Hornbuckle, R. Smith and S. Raine](https://reader037.vdocuments.us/reader037/viewer/2022110401/56649e1a5503460f94b08673/html5/thumbnails/31.jpg)
Acknowledgements