DHN                                            INGENIERIA DE RIOS                                               LOGISTICA ...
Earth Processes & Environmental Flows (EPEF): The team                                 http://www.pitt.edu/~jabad/  Univer...
Immediate business to take care …1.   Introductions: list of students2.   Survey (first day)3.   TAs (Ronald and Christian...
DHN                                            INGENIERIA DE RIOS                             Introduction to the class,  ...
Some history                   Einstein arrives in the United States                   on October 12, 1937. Photograph    ...
Logistics: [1] References for this class                                                    Handouts                      ...
Contents of the course                           I will teachUniversity of PittsburghDepartment of Civil and Environmental...
Fluid Mechanics and sediment transport
Fluid flow, sediment transport and bed morphology           1D, 2D and 3D modeling    Courtesy: Jim Best (Univ. of Illinoi...
Types of rivers               Gary’s e-bookBedload channelsMixed load channelsSuspended load channels                     ...
Sediment transport     Schmeeckle and Nelson (2003)   University of Pittsburgh   Department of Civil and Environmental Eng...
Bed morphology and sediment transport   University of Pittsburgh   Department of Civil and Environmental Engineering   EPE...
Sediment transport and bed morphology interaction Schmeeckle et al. (1999)     University of Pittsburgh     Department of ...
Bed morphology
Bedform dynamics                     Types of bedforms (Roscoe G. Jackson II, 1975)Macroforms: (point bars)are defined by ...
An schematic of bedformsFrom ASCE Sedimentation Manual– Marcelo H Garcia
An engineering problemFrom ASCE Sedimentation Manual– Marcelo H Garcia
Alternate bars in straight channels                             Naka River, Parker’s e-book                               ...
River Meandering Bank Erosion                        Point Bar      EROSION   Cut Bank                      Point Bar     ...
Bed morphology at the channel centerline                                                         Time = 4 hr              ...
Some examples of bed morphology
flow                     5                         flow                 m                     7                     9     ...
MBES of Parana - Paraguay junction                         río Paraguay                                   río Paraná
MBES survey of St Clair River, at exit to Lake Huron. July 2008                             Detail St Clair River – bar wi...
Garcia Bend in Sacramento River, California, USA       Randal Dinehart    University of Pittsburgh    Department of Civil ...
Superimposition of ripples over sandbars
Planform configuration
Deltas
Types of rivers            morphodynamic signature at floodplain scale       Meandering                         Braided  ...
2B                            Sun et. al. (2001)                                  DInner bank                 Outer bank  ...
Bank erosion           consequencesForscalingpurposes
Topics for the projects                       You will teach                          on the                          pro...
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Ingeniería de ríos Jorge Abad 2011

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Ingeniería de ríos Jorge Abad 2011

  1. 1. DHN INGENIERIA DE RIOS LOGISTICA Jorge D. Abad Assistant Professor Dept. of Civil and Environmental Engineering University of Pittsburgh http://www.pitt.edu/~jabad/University of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  2. 2. Earth Processes & Environmental Flows (EPEF): The team http://www.pitt.edu/~jabad/ University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  3. 3. Immediate business to take care …1. Introductions: list of students2. Survey (first day)3. TAs (Ronald and Christian)4. Files will be uploaded into a group website for the class  Christian will take of that University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  4. 4. DHN INGENIERIA DE RIOS Introduction to the class, Contents (I will teach) and Projects (You will teach) Jorge D. Abad Assistant Professor Dept. of Civil and Environmental Engineering University of Pittsburgh http://www.pitt.edu/~jabad/University of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  5. 5. Some history Einstein arrives in the United States on October 12, 1937. Photograph from the New York Times,University of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  6. 6. Logistics: [1] References for this class Handouts Journal papers Conference papers OtherUniversity of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  7. 7. Contents of the course I will teachUniversity of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  8. 8. Fluid Mechanics and sediment transport
  9. 9. Fluid flow, sediment transport and bed morphology 1D, 2D and 3D modeling Courtesy: Jim Best (Univ. of Illinois) See all movies
  10. 10. Types of rivers Gary’s e-bookBedload channelsMixed load channelsSuspended load channels Bed load and suspended load 50g/m/s, 7.0 mm (D50) 50g/m/s, 0.14 mm (D50) Schumm (1981-1985)
  11. 11. Sediment transport Schmeeckle and Nelson (2003) University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  12. 12. Bed morphology and sediment transport University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  13. 13. Sediment transport and bed morphology interaction Schmeeckle et al. (1999) University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  14. 14. Bed morphology
  15. 15. Bedform dynamics Types of bedforms (Roscoe G. Jackson II, 1975)Macroforms: (point bars)are defined by morphologicalregime National GeographicMesoforms: (dunes) Randal Dinehart – Dunes at Garciarespond to flow conditions in Pointthe outer zone of the Bend, Sacramento Riverturbulent boundary layer Bar Parsons et al. (2005)Microforms: (current Pointlineations, ripples) aregoverned by the flow Barstructure in the inner zone University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  16. 16. An schematic of bedformsFrom ASCE Sedimentation Manual– Marcelo H Garcia
  17. 17. An engineering problemFrom ASCE Sedimentation Manual– Marcelo H Garcia
  18. 18. Alternate bars in straight channels Naka River, Parker’s e-book B*   D* 3-D view 2B s nLisle et al. (1997) Federici and Colombini (2003)
  19. 19. River Meandering Bank Erosion Point Bar EROSION Cut Bank Point Bar DEPOSITION
  20. 20. Bed morphology at the channel centerline Time = 4 hr Time = 5 hr Time = 6 hr Abad and Garcia (2009) Water Resources ResearchUniversity of PittsburghDepartment of Civil and Environmental Engineering EPEF group
  21. 21. Some examples of bed morphology
  22. 22. flow 5 flow m 7 9 300 250 200 m 150 100 50 0Parsons et al. (2005)
  23. 23. MBES of Parana - Paraguay junction río Paraguay río Paraná
  24. 24. MBES survey of St Clair River, at exit to Lake Huron. July 2008 Detail St Clair River – bar with superimposed dunes (all in fine gravels!)
  25. 25. Garcia Bend in Sacramento River, California, USA Randal Dinehart University of Pittsburgh Department of Civil and Environmental Engineering EPEF group
  26. 26. Superimposition of ripples over sandbars
  27. 27. Planform configuration
  28. 28. Deltas
  29. 29. Types of rivers  morphodynamic signature at floodplain scale Meandering Braided AnastomosingPurus river, Brazil (Qm~5521 m3/s) Brahmaputra river Mackenzie River, Canada Qm ~ 21,261 m3/s Qm ~ 10,700 m3/s Anabranching Qm>17000 m3/s Solimões–Amazon, Brazil (Qm~55,600 m3/s)
  30. 30. 2B Sun et. al. (2001) DInner bank Outer bank 2762 years(a)2B/D=20, Sfp=0.00067(b)2B/D=26, Sfp=0.00067 3263 years(c)2B/D=20, Sfp=0.002682B/H : width to depth ratioSfp : Slope of the floodplain 4000 years
  31. 31. Bank erosion consequencesForscalingpurposes
  32. 32. Topics for the projects You will teach  on the projectUniversity of PittsburghDepartment of Civil and Environmental Engineering EPEF group

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