GUMBO v1.2 Release Notes

GUMBO v1.2 Release Notes

In Point panel, the user can create Tracking points and read/write to file. (space bar hotkey)
Dumps out surfaces marked as Solid_Surface boundary conditions to surf.r4.sgrid file for visualization. (w hotkey).
Dumps out x,y,z coordinates of the boundary of surfaces marked as Solid_Surface boundary conditions to surf.dat for plotting. (w hotkey).
Applying BCs just got easier. Can assgn BC over entire face and then replace inner regions with other BCs. Inner regions are cut out as needed and included regions are removed. This should eliminate overlapping boundary counditions.
Cell centers are now checked when detecting block connectivity automatically. This will enable the detection of a degenerate boundary without special logic.
Corrected Insert block. Function was not working at all. Logic problem.
Auto-connectivity fixed for arbitrarily oriented blocks. Previous versions could not detect connectivity if blocks where running in opposing directions. Error was due to the creation of the search tree structure. The tree structure was dependent upon the order of insertion. Abandoned BSP tree in favor of a four-level octree approach.
Inquire (? button) will print to fields in Points and Vectors to 16 significant digits, to retain double precision accuracy.
Information displayed on blocks is now offset so the information is diplayed clearly. Direction information has changed from text to a -/+ sign. All informational text is colored to match the face direction, when a block is selected.
Display BC is updated after Change BC.
An additional integer is added to the special connectivity in the DMAP file that indicates the corresponding BC integer in the BC file.
BCs have been extended to doubles to allow for grouping. Format will be such that BC.gid will indicate the BC type and the group id.
The boundary conditions are now pickable. If the boundary conditions are displayed, then using the pick face function (either middle mouse button or F9), will select the boundary condition the mouse cursor is over.
Picked bcs can be reassigned an new bc by selecting out of the Choose One list and depressing ApplyBC.
Also, picked bcs can be used to set the Grid ID field and the location and indice mins and maxs will be set accordingly. This provides a query mechanism.
These boundary conditions can be collected into groups and assigned a group id (between 1-99) and a name (limit 20 characters). By using the new CreateGrp, AddToGrp, and RmvFromGrp buttons located on the Boundary Condition Application panel. The groups are color coded (the first 10 will have unique coloring, 11-30 are grey scaled, 31-50 transitions from green-magenta, 51-70 transitions from red-cyan, 71-99 transitions from blue-yellow.
Depressing the "g" while in the view window will give a list of the existing groups.
The group information is reflected in the bc file by using a real number for the bc type. The format is of the form bc_type.gid, where gid is 01-99. A value of bc_type.1, bc_type.2, etc would be gid of 10, 20, etc (respectively). This information is currently not reflected in the info data file.
Picking/unpicking of assigned groups. F12 is the pick/unpick group operator. Groups can also be picked by id, by typing gid then depressing F12. These groups can then be turned on and off. Groups have also been added to the "Target" options. Groups are manipulated under All and Grp options by using On, Off, or Toggle. These functions are only operational if any boundary conditions are displayed.
New BoundaryCondition file with a boundary condition type defined by special characters and solver specific restrictions. By default all bcs are considered as a GENERAL_BC, i.e. no special treatment. The following special characters preceding the bc_name have special instructions:

* : BLOCK_TO_BLOCK - This allows a bc>0 to be defined. Can only have one BLOCK_TO_BLOCK.

$ : BC_WITH_CONNECTIVITY - This allows a bc>0 to be defined as a special block to block connectivity w/ boundary condition.

& : COUPLED_BC - BC is applied to a single block and the bc on the opposing computational face has to match.

= : CLICKING_INTERFACE - TBD.

~ : SLIDING_INTERFACE - TBD.

I : I Direction Only (110000)

Imin : Imin Only (100000)

Imax : Imax Only (010000)

J : J Direction Only (001100)

Jmin : Jmin Only (001000)

Jmax : Jmax Only (000100)

K : K Direction Only (000011)

Kmin : Kmin Only (000010)

Kmax : Kmax Only (000001)

IJ : IJ Directions Only (111100)

JK : JK Directions Only (001111)

IK : IK Directions Only (110011)

!Imin : Not Imin (011111)

!Imax : Not Imax (101111)

!Jmin : Not Jmin (110111)

!Jmax : Not Jmax (111011)

!Kmin : Not Kmin (111101)

!Kmax : Not Kmax (111110)

Min : Imin, Jmin, Kmin only (101010)

Max : Imax, Jmax, Kmax only (010101)

iIjJkK : i=Imin, I=Imax, j=Jmin, J=Jmax, k=Kmin, K=Kmax and can have values of 0=No or 1=Yes.

For Example:
4 *Block_Interface :: defines bc=4 as a BLOCK_TO_BLOCK.
12 Free_Surface :: bc=12 is a GENERAL_BC that is only applied to Jmax.
19 &RotK :: bc=19 is a COUPLED_BC that is only valid in the K direction.

Quality comparisons of edges and faces are more general. Edges and faces in any computational orientation can be compared. The comparisons are still limited to matching regions. Partial matching is allowed by comparing selected boundary conditions.
The Gxx files can now be written/read in unformatted (GUxx) and binary (GBxx) double precision. Use -GU or -GB in place of -G to invoke this option.
Can read in compressed or gzipped G files. Invoking -G will initially look for Gxx0. If it does not exist, Gxx0.Z is looked for, then Gxx0.gz. This will eliminate the need to uncompress a case for viewing.
Block connectivity detection can now determine O-O type block interfaces. These type of interfaces caused the program to hang. They were undetected in the previous version.
Fixed bug in concatentation of the connectivity information. The blka indices were imposed on the corresponding blkb connectivity, instead of shifting the connectivity accordingly.

* :	BLOCK_TO_BLOCK - This allows a bc>0 to be defined. Can only have one BLOCK_TO_BLOCK.
$ :	BC_WITH_CONNECTIVITY - This allows a bc>0 to be defined as a special block to block connectivity w/ boundary condition.
& :	COUPLED_BC - BC is applied to a single block and the bc on the opposing computational face has to match.
= :	CLICKING_INTERFACE - TBD.
~ :	SLIDING_INTERFACE - TBD.

I	:	I Direction Only (110000)
Imin	:	Imin Only (100000)
Imax	:	Imax Only (010000)
J	:	J Direction Only (001100)
Jmin	:	Jmin Only (001000)
Jmax	:	Jmax Only (000100)
K	:	K Direction Only (000011)
Kmin	:	Kmin Only (000010)
Kmax	:	Kmax Only (000001)
IJ	:	IJ Directions Only (111100)
JK	:	JK Directions Only (001111)
IK	:	IK Directions Only (110011)
!Imin	:	Not Imin (011111)
!Imax	:	Not Imax (101111)
!Jmin	:	Not Jmin (110111)
!Jmax	:	Not Jmax (111011)
!Kmin	:	Not Kmin (111101)
!Kmax	:	Not Kmax (111110)
Min	:	Imin, Jmin, Kmin only (101010)
Max	:	Imax, Jmax, Kmax only (010101)
iIjJkK	:	i=Imin, I=Imax, j=Jmin, J=Jmax, k=Kmin, K=Kmax and can have values of 0=No or 1=Yes.