PMArc Interface

S

(Return)

This interface writes a PMarc input file from an ICEM CFD/CAE structured grid.

Creating the PMArc Input File

The translator writes the PMArc geometry file using the structured domain file(s) (domain.1 to domain.n). To create the PMArc input file, select the translator "PMArc" in the "Output" menu from the ICEM CFD/CAE Manager. After clicking "Write output" you can specify options for the PMArc interface:

• select all the block (2D domain file(s)) to be include in the PMArc input file
• select left or right-handed coordinate system (default is right)
• option to specify a scaling factor
• give the name of the boundary condition file (default is configuration/parts_mesh/mesh/family_boco)
• give the name of the PMArc input file (default is configuration/parts_mesh/transfer/pmarc)

The interface generates the PMArc file located in the Transfer Shell. You may open a shell window in this directory by selecting the menu items "Utility" and "Transform".

If no boundary conditions are defined, the interface will write the geometry for all the selected domain using the default values.
 

Defining boundary conditions for PMArc

The following boundary condition information is supported by the translator:

PATCH TYPE

The translator takes  the family name as the patch name. For meshes generated with P-Cube the translator takes the tagging name from the <name> field.

After selecting a subface, set the following entries:

                HEXA or         
    MULCAD      DDN-Mesher       P-CUBE
    ------      ----------       ------
    1.FLAG      1.string1        Enter the string TYPE
    2.NR        2.integer        Patch type (IDPAT) (default=2; Body patch)
    3.VALUE     3.real1          Patch reversal flag (default=0; not reversed)
    4.X         4.real2          Nr. of component coord. syst. to which this patch belongs (KCOMP) (default=1)
    5.Y         5.real3          Nr. of assembly coord. syst. to which this patch belongs (KASS) (default=1)

PATCH DEFINITION

The translator takes  the family name as the patch name. For meshes generated with P-Cube the translator takes the tagging name from the <name> field.

After selecting a subface, set the following entries:

                HEXA or         
    MULCAD      DDN-Mesher       P-CUBE
    ------      ----------       ------
    1.FLAG      1.string1        Enter the string PATCH
    2.NR        2.integer        X origin (STX)
    3.VALUE     3.real1          Y origin (STY)
    4.X         4.real2          Z origin (STZ)
    5.Y         5.real3          Section scale (SCALE)
    6.Z         6.real4          Rotation angle about Y axis (ALF)
    7.          7.real5          Rotation angle about Z axis (THETA)
    8.A         8.real6          Nr. of crosswise panels (TNPS) (default = 0)
    9.B         9.real7          Crosswise spacing (TINTS) (default=3, equal spacing)
   10.C        10.real8          Nr. of streamwise panels (TNPC) (default = 0)
   11.VALUE    11.real9          Streamwise spacing (TINTC) (default=3, equal spacing)

LIMITATIONS

The following PMArc options are set constant by the interface:

                  Value
    Variable    (constant)      Description
    ------      ----------      ------------
    MAKE            0           Automatic tip patch generation NOT supported.
    IPATSYM         0           Symetrical patch generation NOT supported.
    IPATCOP         0           Copying a previously defined path NOT supported.
    INMODE          4           Input X,Y,Z coordinates only.
                                (PATCH2, PATCH3, SECT2 and SECT3 not supported).
    TNODS           0,3 or 5    No break point definition on patch.
    TNODE           0 or 3      No break point definition alond the section.

 

 
 
 
 
 
 
 

(Return)