A comparison study of one-and two-dimensional hydraulic models for river environments : technical summary.

Details

• Creators:
  Deal, Evan C. ; Parr, A. David ; Young, C. Bryan
• Corporate Creators:
  University of Kansas
• Corporate Contributors:
  Kansas. Dept. of Transportation. Bureau of Research
• Subject/TRT Terms:
  • Rivers
  • Streamflow
  • Hydrologic phenomena
  • Mathematical models
  • Simulation
  • Bridges
  • Two dimensional flow
  • Flow
• Publication/ Report Number:
  Report Number: KS-17-02
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Corporate Publisher:
  Kansas. Dept. of Transportation. Bureau of Research
• Abstract:
  Findings in this report include: differences in the flow divisions for multiple opening bridges for all ; three models, less subjectivity in the construction of the 2D models than for the 1D, differences in the ; sensitivity of each 2D model to the Manning’s roughness coefficient, great similarity in the expansion ; and contraction rates at bridges for the 2D models when using the full momentum equations with HECRAS ; 2D, differences in the response of the two-dimensional models at steady state conditions to vortex ; shedding through bridge openings with cylindrical piers, shorter computation times for HEC-RAS 2D ; than SRH-2D using highly comparable model setups, and in general, higher depths predicted by SRH- ; 2D than HEC-RAS 1D but the highest depths overall predicted by the HEC-RAS 2D full momentum ; model.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32363/dot_32363_DS1.pdf
• File Type:
  [PDF - 121.46 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:a0c41e577894ebc82b34cae11a203588aa500a0f113ee47f82b6e2d44dbe643a