Enhancements to the FHWA-FST2DH Model for Simulating Two-dimensional Depth-averaged Flow and Sediment Transport

The objectives of this research is to enhance the FHWA-FST2DH Model for Simulating Two-dimensional Depth-averaged Flow and Sediment Transport. The research will address the following needs: (1) Improve Equation Solution Schemes - Implement parallel versions of several popular iterative methods for solving systems of equations. This will allow much faster computation times thus increasing productivity and the application of more complicated solutions to complex surface water flows. (2) Update and Testing of Sediment Transport Algorithms - Existing sediment transport algorithms will be tested using both hypothetical cases and comparison to measured data from both laboratory experiments and onsite studies of scour at river bends and constrictions (such as bridge openings). Sediment transport formulas not currently included in the existing formula library will also be added. (3) Update of Bridge Pier Local Scour Calculations - Bridge pier local scour calculations will be updated to include the most recent HEC-18 procedures, as well as other optional local scour calculation methods not currently coded in the model. (4) Update FST2DH Manual that would include the following: (a) Descriptions of improved sediment transport algorithms. (b) An added appendix that describes sediment transport test applications and new sediment transport formulas. (c) An added appendix that describes use of new equation solution schemes. (d) An added appendix that describes solution parameter uncertainty estimate calculations and how they can be used in practical design of hydraulic structures such as bridges and river training works. (e) Conversion of current WordPerfect electronic format to Microsoft Word electronic format. This encompasses much more than an import/export operation from either WordPerfect or Microsoft Word since all equations will need to be re-typed and the document will need to be reformatted completely.

• Record URL:
  http://www.pooledfund.org/Details/Study/476

Language

• English

Project

• Status: Programmed
• Funding: $290000
• Contract Numbers:

  TPF-5(248)

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  California Department of Transportation

  1227 O Street
  Sacramento, CA  United States  95814

  Georgia Department of Transportation

  600 West Peachtree Rd
  Atlanta, GA  United States  30308

  New York State Department of Transportation

  50 Wolf Road
  Albany, NY  United States  12232

  Nevada Department of Transportation

  1263 South Stewart Street
  Carson City, NV  United States  89712
• Project Managers:

  Kerenyi, Kornel

• Start Date: 20120308
• Expected Completion Date: 0
• Actual Completion Date: 20181107
• Source Data: RiP Project 42029

Subject/Index Terms

• TRT Terms: Algorithms; Flood plains; Hydraulic structures; Scour; Streambeds
• Uncontrolled Terms: Flow capacity (Water flow); Hydraulic design
• Subject Areas: Bridges and other structures; Design; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 01541251
• Record Type: Research project
• Source Agency: Federal Highway Administration
• Contract Numbers: TPF-5(248)
• Files: RIP, USDOT, STATEDOT
• Created Date: Oct 21 2014 1:02AM