LISFLOOD-FP 8.3 · FV1
LISFLOOD-FP 8.3, first-order finite-volume solver (full shallow-water equations).
Production software, installed from its official source and run by the suite with its defaults, except the settings each card names. Rank #1 on the leaderboard, OpenHydro rating 1139 (95 % interval 1032 to 1264) over 13 tests; median difference 0.033 %. Score cards from: LISFLOOD-FP 8.3 FV1.
| Test | Difference, rank | Checks |
|---|---|---|
| Gentle backwater in a channel A1F-001 | #11 0.026 % off of 15 models | • Average depth error 0.24 mm off; · Water conserved 0.026 % error |
| Dam break onto dry ground A1F-010 | #6= 1.3 % off of 20 models | • Flood front 5.05 m behind exact; · Water conserved < 0.0001 % error |
| Dam break into shallow water A1F-011 | #5= 0.18 % off of 20 models | • Average depth error 0.98 mm off; · Water conserved 0.016 % error |
| Calm flow over a hump A1F-040 | #2= 0.03 % off of 12 models | • Average depth error 0.58 mm off; • Average flow error 0.000951 m²/s off |
| Flow speeding up over a hump A1F-041 | #4= 0.17 % off of 12 models | • Average depth error 1.1 mm off; • Average flow error 0.000402 m²/s off |
| Hump with a hydraulic jump A1F-042 | #4= 0.2 % off of 12 models | • Average depth error 0.68 mm off; • Average flow error 0.000288 m²/s off |
| Still lake around an island A1F-043 | #1= under 0.01 % off of 13 models | • Worst velocity error 0 m/s off; • Average depth error < 0.0001 mm off |
| Water sloshing in a bowl A2A-001 | #7 0.21 % off of 9 models | • Average depth error 0.069 mm off; · Water conserved < 0.0001 % error |
| Steady flow over a shaped bed A2A-010 | #9 0.033 % off of 12 models | • Average depth error 0.3 mm off; · Water conserved 0.033 % error |
| Flooding a cut-off pond A2C-EA1 | #1 0.27 % off of 10 models | • Pond level, point 1 0.66 mm off; • Pond level, point 2 0.66 mm off; • Peak level 0.38 mm off |
| Filling floodplain hollows A2C-EA2 | #1= under 0.01 % off of 10 models | • Water conserved < 0.0001 % off |
| Flood spreading over a floodplain A2C-EA4 | #1= under 0.01 % off of 10 models | • Water conserved 0.008 % off Run at the specification's 5 m grid (the demo solver uses the allowed 10 m alternative). The inflow enters as LISFLOOD-FP point sources on the cells the inflow line crosses. |
| Valley flooding A2C-EA5 | #1= under 0.01 % off of 10 models | • Water conserved < 0.0001 % off |