/ADMESH/GLOBAL

Block Format Keyword Defines the global parameters for adaptive meshing. This keyword is not available for SPMD computation.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/ADMESH/GLOBAL
Levelmax ladmrule Time delay   Idt          

Definitions

Field Contents SI Unit Example
Levelmax Maximum level

(Integer)

  
ladmrule Enforcement flag for rule 2 to 1. 2
= 0
No
= 1
Yes

(Integer)

  
Time delay Time interval between 2 checks for adaptive meshing using angle or thickness error criteria.

(Real)

 [ s ]
Idt Time step flag based on the coarse mesh. 5 6
= 0
No
= 1
Yes - it is required to use nodal time step /DT/Eltyp/Iflag in Radioss Engine

(Integer)

  

Comments

  1. The maximum level Levelmax of subdivisions of an element is the same overall the parts which will be declared adaptive in /ADMESH/SET.

    Elements of the original mesh correspond to level 0 ones.

  2. If Iadmrule is set to 1, the adaptive re-meshing process ensures that the difference in level between two neighboring elements within the parts that are declared adaptive, will not exceed 1.

    Otherwise, the difference in level between two neighboring elements is not controlled and may be greater.

  3. The time delay field defines the time interval between two checks (using angle or thickness error criteria in /ADMESH/SET) performed for adaptive meshing. For details on these criteria, refer to /ADMESH/SET.
  4. In case of a multi-stage analysis that uses state files to restore the state of adapted parts, this keyword is compulsory for adapting these parts; the values for Iadmrule and Time delay may be changed in each stage, but the value of Levelmax must be the same as that of the previous stage.
  5. If Idt is set to 1, the cycle time step will be based on the coarse mesh and not on the current refined mesh, therefore will be larger. So the results may be less accurate.
  6. In Adaptive Meshing, node ID and shell ID are limited to < 900000000.