ENZO - Tiger Simulation

Data Type: Scalar projections and volume data (floats) Data Source:  
Visualization Type: Volume rendering Software: Vista (Volume Renderer)
Data Size: 2000 timesteps, 2 variables Visualization System Cobalt (NCSA)
Data Volume: 512x512x512 Computing System Columbia (NASA)

Description: Cosmological Reionization simulation was performed based on the Tiger hydrodynamic code of the Princeton Cosmology Group. The simulation was carried jointly at NCSA and NASA Columbia system. The visualizations shows the density distribution of cosmic gas as time evolves in a 100 megaparsec box. The filamentary structure, the cosmic "web", is a result of gravitational collapse of small fluctuations implanted during the very early inflationary epoch.

Visualization :
 Amit Chourasia, Visualization Services, SDSC
Simulation/Data :
 Renyue Cen, Princeton University
Sponsor:
 TeraGrid: Advanced User Support

Matter Density

density

Movies

  1. 1280x960 (163 mb)
  2. 800x480 (69.7 mb)

Matter Density between 10^5 to 10^7 Kelvin

density

Movies

  1. 1280x960 (87.1 mb)
  2. 800x480 (40.7 mb)

 

Hybrid Density Temperature Volume Renderings

Timestep 1799
densitydensity density

High, Mid and Low

Description: Timestep 1799

Snapshots of hybrid temperature density

Timestep 1001
densitydensity density

High, Mid and Low

Description: Timestep 1001

Snapshots of hybrid temperature density

Timestep 509
densitydensity density

High, Mid and Low

Description: Timestep 509

Snapshots of hybrid temperature density

Timestep 509
density density density

High, Mid and Low

Description: Timestep 509

Snapshots of hybrid temperature density


Hybrid Density Temperature Volume Renderings

Timestep 509
density density

Description: Timestep 509

Snapshots of hybrid temperature density with two different colormaps


Density Volume Renderings

Final Transfer Function

Timestep 1903
density

Timestep 509
density

Colormap : Black-Green-Yellow-Red

Description: Timestep 1903 and 509

 

 

 
Colormap tests

Timestep 449
density
Colormap BBRY Black-Blue-Red-Yellow

density
Colormap BBRYW: Black-Blue-Red-Yellow-White

Description:

Snapshots of density with three different colormaps

 

 

Movies

  1. colormap bbry (3.7 mb)
  2. colormap bbryw (2.95 mb)
Resolution: 1280 x 960
Codec: H264

2D density projections

Timestep 449

density
Colormap BBRY Black-Blue-Red-Yellow

density
Colormap BBRYW: Black-Blue-Red-Yellow-White

density
Colormap Grey scale

density
Bump + Colormap BBRY

density
Bump + Colormap BBRYW

Description:

Snapshots of density projection with two different colormaps

 

 

Movies

  1. colormap bbry (3.7 mb)
  2. colormap bbryw (4.1 mb)
  3. colormap grey (2.8 mb)
  4. bump + bbry (19.7 mb)
  5. bump + bbryw (20.0 mb)
Resolution: 800 x 600
Codec: H264