HEC-RAS 7.0 1D · 2D SWE-ELM
HEC-RAS 7.0.1 (US Army Corps of Engineers), built and run headless with its default settings; in 2D, its default full shallow-water option (SWE-ELM).
Production software, installed from its official source and run by the suite with its defaults, except the settings each card names. Rank #2 on the leaderboard, OpenHydro rating 961 (95 % interval 732 to 1134) over 8 tests; median difference 0.41 %. Score cards from: HEC-RAS 7.0.1, HEC-RAS 7.0.1 2D SWE-ELM.
| Test | Difference, rank | Checks |
|---|---|---|
| Gentle backwater in a channel A1F-001 | #5= 0.011 % off of 15 models | • Average depth error 0.1 mm off; · Water conserved 0.011 % error |
| Dam break onto dry ground A1F-010 | #14= 26 % off of 20 models | • Flood front 97.4 m behind exact; · Water conserved 0.0049 % error |
| Dam break into shallow water A1F-011 | #10= 0.9 % off of 20 models | • Average depth error 5 mm off; · Water conserved 0.011 % error |
| Steady flow over a shaped bed A2A-010 | #3= 0.01 % off of 12 models | • Average depth error 0.094 mm off; · Water conserved 0.0096 % error |
| Flooding a cut-off pond A2C-EA1 | #7= 5.1 % off of 10 models | • Pond level, point 1 1.3 cm off; • Pond level, point 2 1.3 cm off; • Peak level 0.052 mm off |
| Filling floodplain hollows A2C-EA2 | #7= 0.79 % off of 10 models | • Water conserved 0.79 % off |
| Flood spreading over a floodplain A2C-EA4 | #1= under 0.01 % off of 10 models | • Water conserved 0.00088 % off |
| Valley flooding A2C-EA5 | #7= 0.041 % off of 10 models | • Water conserved 0.041 % off |