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

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

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

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

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

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

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

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

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

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	Dec.19.21	Vicky Moschou

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

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	Revised by
Andrew McGhee	Feb.07.07	Dec.19.21	Vicky Moschou

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

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

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

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	Revised by
Steve Feldman	Apr.07.00	Dec.19.21	Vicky Moschou

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)