# Relevant Section of Enzo Paramter File (NOT COMPLETE!) 
ProblemType                              = 30      // cosmology simulation
TopGridRank                              = 3
TopGridDimensions                        = 32 32 32
SelfGravity                              = 1       // gravity on
TopGridGravityBoundary                   = 0       // Periodic BC for gravity
LeftFaceBoundaryCondition                = 3 3 3   // same for fluid
RightFaceBoundaryCondition               = 3 3 3
RefineBy                                 = 2

#
CosmologySimulationOmegaBaryonNow        = 0
CosmologySimulationOmegaCDMNow           = 0.285
CosmologySimulationCalculatePositions    = 1
CosmologySimulationParticleVelocity1Name = ParticleVelocities_x
CosmologySimulationParticleVelocity2Name = ParticleVelocities_y
CosmologySimulationParticleVelocity3Name = ParticleVelocities_z
CosmologySimulationParticleDisplacement1Name = ParticleDisplacements_x
CosmologySimulationParticleDisplacement2Name = ParticleDisplacements_y
CosmologySimulationParticleDisplacement3Name = ParticleDisplacements_z

#
#  define cosmology parameters
#
ComovingCoordinates                      = 1       // Expansion ON
CosmologyOmegaMatterNow                  = 0.285
CosmologyOmegaLambdaNow                  = 0.715
CosmologyHubbleConstantNow               = 0.695     // in 100 km/s/Mpc
CosmologyComovingBoxSize                 = 25    // in Mpc/h
CosmologyMaxExpansionRate                = 0.015   // maximum allowed delta(a)/a
CosmologyInitialRedshift                 = 99      //
CosmologyFinalRedshift                   = 0       //
GravitationalConstant                    = 1       // this must be true for cosmology
#
#
ParallelRootGridIO                       = 1
ParallelParticleIO                       = 1
PartitionNestedGrids                     = 1
CosmologySimulationNumberOfInitialGrids  = 3
CosmologySimulationGridDimension[1]      =               22               18               22
CosmologySimulationGridLeftEdge[1]       =           0.3125            0.375           0.3125
CosmologySimulationGridRightEdge[1]      =          0.65625          0.65625          0.65625
CosmologySimulationGridLevel[1]          = 1
CosmologySimulationGridDimension[2]      =               24               16               24
CosmologySimulationGridLeftEdge[2]       =            0.375           0.4375            0.375
CosmologySimulationGridRightEdge[2]      =           0.5625           0.5625           0.5625
CosmologySimulationGridLevel[2]          = 2
#
# region allowed for further refinement
#
RefineRegionLeftEdge                     =          0.39375             0.45          0.39375
RefineRegionRightEdge                     =          0.54375             0.55          0.54375
