There are 3 different configurations being used for HiLiftPW-2:

Case1Config2 - Slat 26.5 deg, Flap 32 deg (Wing/Body/HL system + SOB Flap Seal) 
               for grid convergence study
               Multiple grid densities
Case2Config4 - Slat 26.5 deg, Flap 32 deg (Config 2 + Slat Tracks and Flap Track Fairings) 
               for Reynolds number study
               Medium grid density
Case3Config5 - Slat 26.5 deg, Flap 32 deg (Config 4 + Slat Pressure Tube Bundles)
               for "full configuration" study
               Medium grid density


OriginalGrids:

A_str_1to1 - Structured 1-to-1 multiblock grids made at Boeing using ICEM software.
A_uns_1to1 - Unstructured hexahedral element version of A_str_1to1.
B_uns_mix  - Unstructured mixed-element grids made at DLR using SOLAR software.
C_uns_tet  - Unstructured tetrahedral grids made at Pointwise, Inc. using Pointwise software.
C_uns_mix  - Unstructured mixed element version of C_uns_tet.
D_uns_tet  - Unstructured tetrahedral grids made at Cessna & U. Wyoming using VGRID software.
D_uns_mix  - Unstructured mixed element version of D_uns_tet.
E_str_over - Structured overset multiblock grids made at Boeing using various software tools.