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| 1 | # Relevant Section of Enzo Paramter File (NOT COMPLETE!) | |
| 2 | ProblemType = 30 // cosmology simulation | |
| 3 | TopGridRank = 3 | |
| 4 | - | TopGridDimensions = 256 256 256 |
| 4 | + | TopGridDimensions = 128 128 128 |
| 5 | SelfGravity = 1 // gravity on | |
| 6 | TopGridGravityBoundary = 0 // Periodic BC for gravity | |
| 7 | LeftFaceBoundaryCondition = 3 3 3 // same for fluid | |
| 8 | RightFaceBoundaryCondition = 3 3 3 | |
| 9 | RefineBy = 2 | |
| 10 | ||
| 11 | # | |
| 12 | CosmologySimulationOmegaBaryonNow = 0.0486 | |
| 13 | CosmologySimulationOmegaCDMNow = 0.2603 | |
| 14 | CosmologySimulationDensityName = GridDensity | |
| 15 | CosmologySimulationVelocity1Name = GridVelocities_x | |
| 16 | CosmologySimulationVelocity2Name = GridVelocities_y | |
| 17 | CosmologySimulationVelocity3Name = GridVelocities_z | |
| 18 | CosmologySimulationCalculatePositions = 1 | |
| 19 | CosmologySimulationParticleVelocity1Name = ParticleVelocities_x | |
| 20 | CosmologySimulationParticleVelocity2Name = ParticleVelocities_y | |
| 21 | CosmologySimulationParticleVelocity3Name = ParticleVelocities_z | |
| 22 | CosmologySimulationParticleDisplacement1Name = ParticleDisplacements_x | |
| 23 | CosmologySimulationParticleDisplacement2Name = ParticleDisplacements_y | |
| 24 | CosmologySimulationParticleDisplacement3Name = ParticleDisplacements_z | |
| 25 | ||
| 26 | # | |
| 27 | # define cosmology parameters | |
| 28 | # | |
| 29 | ComovingCoordinates = 1 // Expansion ON | |
| 30 | CosmologyOmegaMatterNow = 0.3089 | |
| 31 | CosmologyOmegaLambdaNow = 0.6911 | |
| 32 | CosmologyHubbleConstantNow = 0.6774 // in 100 km/s/Mpc | |
| 33 | CosmologyComovingBoxSize = 500 // in Mpc/h | |
| 34 | CosmologyMaxExpansionRate = 0.015 // maximum allowed delta(a)/a | |
| 35 | CosmologyInitialRedshift = 200 // | |
| 36 | CosmologyFinalRedshift = 0 // | |
| 37 | GravitationalConstant = 1 // this must be true for cosmology | |
| 38 | # | |
| 39 | # | |
| 40 | ParallelRootGridIO = 1 | |
| 41 | ParallelParticleIO = 1 | |
| 42 | PartitionNestedGrids = 1 | |
| 43 | CosmologySimulationNumberOfInitialGrids = 1 |
