Examples

These files are distributed as a service to help CGNS users test their own implementations. They are submitted by users “as is” and are not certified by anyone except the sender to be CGNS compliant.

If you have any questions about these data files, please contact the person listed in the table. The CGNS Committee is not able to provide technical support for the data files listed on this webpage.

Please send any CGNS data files (along with a graphic file if possible) or the URL of the datafiles which you would like to share with the CGNS users community to: cgnstalk@lists.nasa.gov .

Note that most of the files on this page are very old.

Structured Grid

Constricting channel

Contact

Posted Date

Revision Date

Marc Poinot

Jan.25.16

Jan.25.16

../_images/constrictingchannel.png
Description

Structured, 12 block, 3-D constricting channel, with example use of Family_t for BCs

Data File (ADF)

sqnz_s.adf.cgns.gz (< 1Mb)

Data File (HDF)

sqnz_s.hdf.cgns.gz (< 1Mb)

Axisymmetric bump

Contact

Posted Date

Revision Date

Chris Rumsey

Apr.14.00

Feb.03.14

../_images/bump.gif
Description

Structured, 1 block, quasi-3D axisymmetric bump (2 planes) , with cell centered solution

Data File (ADF)

bump.cgns.gz (6.4Mb)

Data File (HDF)

bump_hdf5.cgns.gz (6.4Mb)

2D Multielement airfoil

Contact

Posted Date

Revision Date

Chris Rumsey

Apr.14.00

Feb.03.14

../_images/multi.gif
Description

Structured, 4 blocks, 2D (2 planes in third dimension) multielement airfoil, with cell centered solution

Data File (ADF)

multi.cgns.gz (2.3Mb)

Data File (HDF)

multi_hdf5.cgns.gz (2.3Mb)

3D Delta Wing

Contact

Posted Date

Revision Date

Chris Rumsey

Apr.14.00

Jul.24.07

../_images/delta.gif
Description

Structured, 1 block, 3-D Delta Wing, with cell centered solution - see also delta_vertex.cgns.gz with solution at vertices

Data File

delta.cgns.gz (8.1Mb)

Wing Vertex solution

Contact

Posted Date

Revision Date

Chris Rumsey

Jul.23.07

Jul.23.07

../_images/delta.gif
Description

Structured, 1 block, 3-D Delta Wing, with solution at vertices - see also delta.cgns.gz with cell-center solution

Data File

delta_vertex.cgns.gz (3.1Mb)

Overset Airfoil 1

Contact

Posted Date

Revision Date

Herb Schilling

Feb.23.07

Feb.23.07

../_images/oversetnasa1.gif
Description

Structured, 3 block, 2D (1 plane in third dimension) airfoil with combination 1-to-1 and overset connectivity, no solution included

Data File

oversetnasa1.cgns.gz (181Kb)

Overset Airfoil 2

Contact

Posted Date

Revision Date

Herb Schilling

Feb.23.07

Feb.23.07

../_images/oversetnasa2.gif
Description

Structured, 5 block, 2D (1 plane in third dimension) airfoil with combination 1-to-1 and overset connectivity, no solution included

Data File

oversetnasa2.cgns.gz (191Kb)

DLR-F6 Wing body

Contact

Posted Date

Revision Date

Chris Rumsey

Feb.09.07

Feb.09.07

../_images/dlr-f6.gif
Description

Structured, 26 block, DLR-F6 wing-body (includes several degenerate lines), no solution included

Data File

dlr-f6.coar.cgns.gz (55.5Mb)

Business Jet

Contact

Posted Date

Revision Date

Edwin van der Weide

July.29.04

July.29.04

Description

Multiblock stuctured grids for a business jet, a wing/body, and a wing/body/nacelle/pylon configuration are available from Stanford.

Data File

Stanford CGNS test files (link to external site)

Butterfly mesh

Contact

Posted Date

Revision Date

Diane Poirier

Apr.06.00

Apr.06.00

../_images/5blocks.gif
Description

3D Multiblock Structured Mesh

Data File

5blocks.cgns.gz (21Kb)

Unstructured Grid

YF-17

Contact

Posted Date

Revision Date

Revised by

Bruce Wedan

Mar.17.11

Feb.03.14

Chris Rumsey

../_images/yf17.gif
Description

Unstructured mesh for YF-17 with solution with useful BCs.

Data File (ADF)

yf17.cgns.gz (7.5Mb)

Data File (HDF)

yf17_hdf5.cgns.gz (7.5Mb)

Trapped Vortex

Contact

Posted Date

Revision Date

Marc Poinot

Feb.27.20

Feb.27.20

../_images/trappedvtx.png
Description

Unstructured polygonal mesh of a trapped vortex combustor configuration with Family hierarchy tree (CGNS 4.1 standard).

Data File

trappedvtx_ngon.cgns.gz (4.8Mb)

SC10 Blade

Contact

Posted Date

Revision Date

Andrew McGhee

Feb.07.07

Feb.07.07

../_images/SC10.gif
Description

3-D hexahedral mesh for the Standard Configuration 10 blade (single blade, part of a compressor cascade), with cell centered solution.

Data File

SC10_steady.cgns.gz (34.2Mb)

Heating Coil

Contact

Posted Date

Revision Date

Richard Hann

Jul.29.04

Jul.29.04

../_images/HeatingCoil.gif
Description

2 zone unstructured mixed element mesh of a coil inside a cylinder with solution.

Data File

HeatingCoil.cgns.gz (2.3Mb)

Static Mixer

Contact

Posted Date

Revision Date

Richard Hann

Jul.29.04

Jul.29.04

../_images/StaticMixer.gif
Description

Unstructured mesh of a static mixer with solution.

Data File

StaticMixer.cgns.gz (221Kb)

Piston

Contact

Posted Date

Revision Date

Richard Hann

Jul.29.04

Jul.29.04

../_images/MovingTransient.gif
Description

Moving mesh solution of a piston; 20 timesteps (not using the standard BaseIterativeData method, but rather storing each time step in a separate base).

Data File

MovingTransient.cgns.gz (849Kb)

Obstructed Elbow

Contact

Posted Date

Revision Date

Steve Feldman

Apr.07.00

Apr.07.00

../_images/tut21.gif
Description

3D Flow of Air in Obstructed Elbow: Unstructured mesh of MIXED element types with cell centered solution, no boundaries or boundary info included.

Data File

tut21.cgns.gz (61Kb)