Examples

These files are provided to assist CGNS users in testing their implementations. They have been submitted by users “as is” and are not certified by anyone other than the sender as being CGNS compliant.

If you have questions about these data files, please reach out to the person listed in the table or post your inquiries on CGNStalk if no contact information is available. Please note that the CGNS Committee cannot provide technical support for the data files listed on this webpage.

We encourage you to share any CGNS data files (along with a graphic file, if possible) or the URL of the data files with the CGNS user community on CGNStalk.

Please be aware that most of the files, and contact information, on this page are quite 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, Contact is Unavailable.	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, Contact is Unavailable.	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, Contact is Unavailable.	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, Contact is Unavailable.	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, Contact is Unavailable.	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 structured 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)

Box with Particles

Contact	Posted Date	Revision Date
Alexandre Minot	Jul.10.24	Jul.10.24

Description:

Spray in a 3D box of Air: Unstructured mesh with particles in two ParticleZones.

Data File:

particles_example.cgns.gz (295Kb)