OpenHydro Bench

Basilisk Saint-Venant

Basilisk (Popinet, basilisk.fr), its second-order well-balanced Saint-Venant solver on a uniform Cartesian grid with its defaults; Manning friction added as the usual semi-implicit term (it has none built in).

Research code, run with the settings of its own examples. Rank #1 on the leaderboard, OpenHydro rating 1290 (95 % interval 1190 to 1515) over 11 tests; median difference 0.021 %. Score cards from: Basilisk Saint-Venant (snapshot de851a91).

Compare Basilisk with another model →

TestDifference, rankChecks
Gentle backwater in a channel
A1F-001
#8 0.014 % off
of 15 models
• Average depth error 0.13 mm off; · Water conserved 0.014 % error
Dam break onto dry ground
A1F-010
#1 0.45 % off
of 20 models
• Flood front 1.68 m behind exact; · Water conserved < 0.0001 % error
Dam break into shallow water
A1F-011
#1 0.047 % off
of 20 models
• Average depth error 0.26 mm off; · Water conserved 0.016 % error
Standing hydraulic jump
A1F-020
#2 0.093 % off
of 9 models
• Depth profile 0.093 % off; · Jump stays put 0.052 % error
Calm flow over a hump
A1F-040
#1 under 0.01 % off
of 12 models
• Average depth error 0.0083 mm off; • Average flow error < 0.0001 m²/s off
Flow speeding up over a hump
A1F-041
#1 under 0.01 % off
of 12 models
• Average depth error 0.021 mm off; • Average flow error < 0.0001 m²/s off
Hump with a hydraulic jump
A1F-042
#1 0.076 % off
of 12 models
• Average depth error 0.19 mm off; • Average flow error 0.000136 m²/s off
Still lake around an island
A1F-043
#1= under 0.01 % off
of 13 models
• Worst velocity error < 0.0001 m/s off; • Average depth error < 0.0001 mm off
Water sloshing in a bowl
A2A-001
#1 0.021 % off
of 9 models
• Average depth error 0.0069 mm off; · Water conserved 0.0001 % error
Steady flow over a shaped bed
A2A-010
#6 0.017 % off
of 12 models
• Average depth error 0.16 mm off; · Water conserved 0.017 % error
Supercritical flow turned by a wall
A2A-020
#2 0.36 % off
of 4 models
• Average depth error 4.5 mm off; · Water conserved 0.13 % error