NOTE!
20 April 2009 The following files were replaced with corrected boundary
              conditions:
                          dpw-wb0_med-7Mc_5.tgz
                          dpw-wb0_med-8Mc_5.tgz
                          dpw-wbt0_crs-3.5Mc_5.tgz
                          dpw-wbt0_med-10Mc_5.tgz
                          dpw-wbt0_med-11Mc_20.tgz
                          dpw-wbt2dn_med-10Mc_5.tgz
                          dpw-wbt2up_med-10Mc_5.tgz
              All files now should have correct boundary conditions.


17 April 2009 Errors were discovered in the boundary condition specification
              in at least 2 of the grids in the current directory.  
              In the *.mapbc file(s), a BC type of 5 was incorrectly specified 
              for the farfield boundary faces.  This number is incorrect, as it
              indicates an inviscid (slip) wall.  The number should have been 
              3 (=farfield BC) instead.  As a result of this error, the 
              associated *.cgns file(s) also have incorrect boundary conditions
              for the farfield faces (BCWallInviscid, when they should read 
              BCFarField instead).

              These errors can be corrected by the user by editing the 
              *.mapbc file(s) and/or the *.cgns file(s).  The latter editing 
              requires adfviewer software.

              We hope to correct these errors soon.

                       DPW4 Grid Files
                     (February 19, 2009)

The tar files below include the GridTool restart file (rst), 
VGRID files (bbx, igs, d3m, mapbc, cogsg, front, poin1, bc),
and CGNS files (cgns). These grids are tetrahedral and for
cell-based solvers (containing approximately 3.5, 10, 35, and 
100 million cells). For VGRID file formats, refer to the 
VGRID_FILE_FORMATS.txt file. Grids are also provided in the
CGNS format. For CGNS file format, see
http://cgns.sourceforge.net/

All of these grids were created using GridTool Version 4.2 and
the 32- and 64-bit versions of VGRID/POSTGRID 4.2.

There are some volume and surface sources used in these grids, so if the 
grids are regenerated with an earlier version of VGRID, the restart files
will have to be modified. All grids but the last listed were generated 
for a Reynolds number of 5 million based on the reference chord.

1) dpw-wb0_med-7Mc_5.tgz            Tail off, size = medium. 
                                    Grid at the tail location is coarse.
                                    Re=5M, dy=0.003011.

2) dpw-wb0_med-8Mc_5.tgz            Tail off, size = medium. 
                                    Grid at the tail location is fine and 
                                    compatible with other grids with tail on.
                                    Re=5M, dy=0.003011.

3) dpw_wbt0_crs-3.5Mc_5.tgz         Tail on at 0 degree, size = coarse. 
                                    Re=5M, 0.00508.

4) dpw-wbt0_med-10Mc_5.tgz          Tail on at 0 degree, size = medium.
                                    Re=5M, dy=0.003011.

5) dpw-wbt0_fine-35Mc_5.tgz         Tail on at 0 degree, size = fine.
                                    Re=5M, 0.002507.

6) dpw-wbt2dn_med-10Mc_5.tgz        Tail on at 2 degrees nose down, size = medium.
                                    Re=5M, dy=0.003011.

7) dpw-wbt2up_med-10Mc_5.tgz        Tail on at 2 degrees nose up, size = medium.
                                    Re=5M, dy=0.003011.

8) dpw-wbt0_extrafine-100Mc_5.tgz   Tail on at 0 degree, size = extra fine.
                                    Re=5M, dy=0.001671.

9) dpw-wbt0_med-11Mc_20.tgz         Tail on at 0 degree, size = medium.
                                    Re=20M, dy=0.000834.


For questions about grids/files, please contac:

Shahyar Pirzadeh
Mail Stop 499
NASA Langley Research Center
Hampton, VA 23681-2199

Phone:  (757) 864-2245
FAX:     (757) 864-8469
E-mail: Shahyar.Z.Pirzadeh@nasa.gov